Lexus Car ES, IS, LS 1998-06

Coil Spring Front Suspension

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Hub & Bearings



Adjustment

Check the backlash in bearing shaft direction and the axle hub deviation. Maximum for backlash should be 0.0020 in. (0.05mm) and for axle hub deviation 0.020 in. (0.05mm).

Click image to see an enlarged view

Fig. Checking wheel bearings for excessive play


NOTE
The front wheel bearings are non-adjustable. If the wheel bearing is out of specifications, replace the wheel bearing.

Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:
    NOTE
    On AWD models, use a plastic hammer to tap the hub unit away from the drive shaft.



    Negative battery cable
     
    Front wheels
     
    Speed sensor
     
    Disc brake caliper
     
    Brake disc
     
    Front axle hub nut (AWD)
     
    4 bolts and front axle hub
     

  4.  

To install:

  1. Install or connect the following:

    Front axle hub. Torque the mounting bolts to 51 ft. lbs. (69 Nm).
     
    New front axle hub nut (AWD). Torque to 217 ft. lbs. (294 Nm).
     
    Brake disc
     
    Disc brake caliper
     

  2.  
  3. Stake the front axle hub nut using a hammer and chisel.

    Speed sensor
     
    Front wheels
     
    Negative battery cable
     

  4.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:
    WARNING
    Never allow the caliper to hang freely from the brake hose.



    Negative battery cable
     
    Front wheels
     
    Fender apron seal
     
    Cotter pin and lock cap from the end of the halfshaft
     
    Halfshaft locknut.
     
    Brake caliper and use a wire to support it out of the way
     



    Rotor
     
    Anti-lock Brake System (ABS) speed sensor from the steering knuckle
     
    Nuts on the lower end of the strut
     
    Tie rod end from the steering knuckle
     
    Lower control arm from the ball joint
     
    Driveshaft from the axle hub
     
    2 nuts on the lower end of the strut
     
    Steering knuckle
     

  4.  
  5. Clamp the steering knuckle in a vise with soft jaws to protect the knuckle.

    Dust deflector from the hub
     
    Ball joint from the steering knuckle
     
    Hub from the knuckle

    Click image to see an enlarged view

    Fig. Removing the axle hub from the steering knuckle-ES 300

     
    Inner race from the hub

    Click image to see an enlarged view

    Fig. Remove the inner race from the hub-ES 300

     
    Dust cover
     
    Snapring
     
    Bearing from the steering knuckle
     

  6.  

To install:

  1. Install or connect the following:

    Bearing into the knuckle
     
    Snapring
     
    Dust cover. Tighten the 4 bolts to 74 inch lbs. (8.3 Nm).
     
    Hub into the steering knuckle
     
    Lower ball joint to the steering knuckle. Tighten the nut to 90 ft. lbs. (123 Nm) and install a new cotter pin.
     
    Dust deflector
     
    Knuckle on the lower strut
     
    Lower ball joint to the lower arm. Tighten the bolts to 94 ft. lbs. (127 Nm).
     
    Tie rod end to the steering knuckle. Tighten the nut to 36 ft. lbs. (49 Nm).
     
    Nuts on the lower strut to 156 ft. lbs. (211 Nm)
     
    ABS speed sensor. Tighten the mounting bolt to 69 inch lbs. (8 Nm).
     
    Rotor
     
    Caliper. Tighten the mounting bolts to 79 ft. lbs. (107 Nm).
     
    Axle locknut. Tighten the nut to 217 ft. lbs. (294 Nm). Install the lock cap and a new cotter pin.
     
    Front fender apron seal
     
    Wheel
     

  2.  
  3. Turn the wheel by hand, verify that the wheel turns without noise and without binding.
  4.  
  5. Lower the vehicle.
  6.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. If equipped with air suspension, move the height control switch in the trunk area to the OFF position.
  4.  
  5. Remove or disconnect the following:

    Front tire and wheel assembly
     
    Brake caliper bracket from the steering knuckle, leaving the brake line connected. Support the caliper with a piece of wire.
     
    Brake rotor
     
    Anti-lock Brake System (ABS) speed sensor from the steering knuckle
     
    Steering knuckle from the lower ball joint by removing the 2 bolts
     
    Steering knuckle from the upper ball joint
     
    Steering knuckle with the axle hub from the vehicle
     
    Grease cap from the hub
     
    Nut and the speed sensor rotor
     
    4 bolts and shift the brake dust cover towards the hub side
     
    Axle hub from the steering knuckle
     
    Outside inner race from the axle
     
    Oil seal from the steering knuckle
     
    Snapring and bearing from the steering knuckle
     

  6.  

To install:

  1. Install or connect the following:

    Bearing in the steering knuckle
     
    Snapring
     
    Inner race (outside)
     
    New oil seal until it is flush with the end surface of the steering knuckle
     
    Brake dust cover to the steering knuckle and tighten the bolts to 74 inch lbs. (8.4 Nm)
     
    Axle hub to the steering knuckle
     
    ABS speed sensor
     
    New nut on the axle shaft. Tighten the nut to 147 ft. lbs. (199 Nm). Stake the nut and install the grease cap.
     
    Steering knuckle to the lower ball joint and tighten the bolts to 83 ft. lbs. (113 Nm)
     
    Steering knuckle to the upper ball joint and tighten the nut to 48 ft. lbs. (65 Nm)
     
    Brake rotor
     
    Brake caliper and tighten the 2 bolts to 87 ft. lbs. (118 Nm)
     
    Speed sensor to the steering knuckle
     
    Front tire and wheel assembly
     

  2.  
  3. If equipped with air suspension, turn the height control switch to the ON position.

    Click image to see an enlarged view

    Fig. Axle hub nut is located on the inboard side of the knuckle assembly-LS 430

  4.  



Click image to see an enlarged view

Fig. Exploded view front hub and bearing assembly-LS 430 (2004)

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheels
     
    Skid control wire
     
    Disc brake caliper assembly
     
    4 bolts and front axle hub assembly
     
    Skid control sensor
     

  4.  

To install:

  1. Install or connect the following:

    Skid control sensor
     
    4 bolts and front axle hub assembly. Tighten to 51 ft. lbs (69 Nm)
     
    2 bolts and front disc brake caliper assembly. Tighten to 58 ft. lbs. (78 Nm)
     
    Skid control sensor wire
     
    Front wheel
     

  2.  
  3. Inspect and adjust front wheel alignment
  4.  
  5. Check ABS sensor signal
  6.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front tire and wheel assembly
     
    Brake caliper support bracket, leaving the brake line connected
     
    Rotor by removing the 2 screws
     
    Anti-lock Brake System (ABS) speed sensor
     
    Cotter pin and nut and disconnect the tie rod from the steering knuckle
     
    Cotter pin and nut
     
    Steering knuckle from the upper control arm
     
    Clip and nut and press the knuckle off the lower control arm
     
    Steering knuckle from the vehicle
     
    Hub bearing cap from the steering knuckle
     
    Hub nut
     
    ABS sensor rotor
     
    4 bolts and shift the brake dust shield toward the hub (outside)
     
    Axle hub from the knuckle
     
    Inner bearing race from the axle hub
     
    Oil seal
     
    Snapring and bearing
     

  4.  

To install:

  1. Press the bearing into the knuckle. If the inner race and balls come loose from the outer race, be sure to install them on the same side as before.
  2.  
  3. Install or connect the following:

    Snapring and inner race, then tap in a new oil seal until it is flush with the end surface of the knuckle
     
    Brake dust cover and tighten the bolts to 74 inch lbs. (8.3 Nm)
     



    Hub into the knuckle
     
    Speed sensor
     
    New locknut and tighten it to 147 ft. lbs. (199 Nm), 217 ft lbs (294 Nm). Stake the nut with a chisel. Tap the bearing cap into place.
     
    Knuckle to the upper control arm and tighten the nut to 76 ft. lbs. (103 Nm). Install a new cotter pin
     
    Knuckle to the lower control arm and tighten the nut to 92 ft. lbs. (125 Nm). Install a new clip.
     
    Tie rod end to the steering knuckle with the nut. Tighten the nut to 36 ft. lbs. (49 Nm). Install a new cotter pin.
     
    Rotor by installing the 2 screws
     
    Caliper support bracket and tighten the bolt to 87 ft. lbs. (118 Nm)
     
    Speed sensor to the knuckle and tighten the bolt to 69 inch lbs. (8 Nm)
     
    Front wheel and tighten the lug nuts to 76 ft. lbs. (103 Nm)
     

  4.  
  5. Lower the vehicle.
  6.  
  7. Check the front end alignment and ABS speed sensor signal.
  8.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Brake caliper and rotor
     
    Wheel speed sensor
     
    Upper and lower ball joints
     
    Steering knuckle from the vehicle
     
    Grease cap
     
    Hub locknut
     
    Brake dust cover
     
    Wheel speed sensor pulse ring
     

  4.  
  5. Press the hub out of the wheel bearing.
  6.  
  7. Remove the grease seal and the snapring, then press the wheel bearing out of the steering knuckle.
  8.  

To install:


NOTE
Use a new hub locknut for assembly.

  1. Installation is the reverse of the removal procedure, while using the following torque values:

    Hub locknut: 108 ft. lbs. (147 Nm)
     
    Brake dust cover bolts: 74 inch lbs. (8.3 Nm)
     
    Lower ball joint bolts: 83 ft. lbs. (113 Nm)
     
    Upper ball joint nut: 50 ft. lbs. (65 Nm)
     
    Brake caliper support bolts: 87 ft. lbs. (118 Nm)
     
    Wheel lug nuts: 76 ft. lbs. (103 Nm)
     

  2.  

Lower Ball Joint



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Remove the front axle hub nut.
  6.  
  7. Disconnect the front speed sensor.
  8.  
  9. Disconnect the front brake caliper assembly.
  10.  
  11. Remove the front brake disc
  12.  
  13. Disconnect the tie rod end.

    Click image to see an enlarged view

    Fig. Separating the lower control arm from the ball joint assembly.-ES 300 and ES 330

  14.  
  15. Remove the bolt and 2 nuts, and disconnect the lower front suspension arm sub-assy from the lower ball joint assembly.
  16.  
  17. Using a plastic hammer, separate the front halfshaft assembly from the front axle hub and steering knuckle assembly. Be careful not to damage the boot and ABS speed sensor rotor.
  18.  
  19. Remove the front halfshaft assembly.
  20.  
  21. Remove the 2 bolts, nuts and steering knuckle with the axle hub.
  22.  
  23. Remove the ball joint cotter pin and nut.
  24.  
  25. Using SST 09628-6201 1, remove the lower ball joint assy from the steering knuckle.
  26.  

To install:

  1. Flip the ball joint stud back and forth 5 times, before installing the nut.
  2.  
  3. Using a torque wrench, turn the nut continuously at a rate of 3-5 seconds per 1 turn and take the torque reading on the 5th turn. Turning torque: 8.7-30 inch lbs. (0.98-3.43 Nm)
  4.  
  5. Install the lower ball joint assy front to the steering knuckle and tighten the nut to 90 ft. lbs. (123 Nm).
  6.  
  7. Install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further up to 60°.
  8.  
  9. Install the 2 bolts, nuts and front steering knuckle assembly to the bottom of the strut assembly. Tighten the nuts to 155 ft. lbs. (210 Nm). Insert the bolt from the rear side of the vehicle and tighten the nut.
  10.  
  11. Install the halfshaft assembly. Be careful not to damage the outboard joint boot. Be careful not to damage the speed sensor rotor.
  12.  
  13. Install the lower ball joint assy front to the front suspension arm sub-assy lower No. 1 with the bolt and nuts. Tighten the bolt and nuts to 94 ft. lbs. (127 Nm).
  14.  
  15. Install the tie rod assy. to the steering knuckle with the nut. Tighten the nut to 36 ft. lbs. (49 Nm).
  16.  
  17. Install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further to 60°.
  18.  
  19. Install the front brake disc
  20.  
  21. Install the front brake caliper assembly.
  22.  
  23. Connect the front speed sensor.
  24.  
  25. Install the front axle hub nut.
  26.  
  27. Install the front wheel.
  28.  
  29. Inspect and adjust wheel alignment.
  30.  
  31. Check ABS sensor signal.
  32.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Disconnect the front brake caliper assembly. Support the brake caliper securely.
  6.  
  7. Remove the front brake disc
  8.  
  9. Remove the clip and nut, then using SST 09610-20012, disconnect the tie rod end.
  10.  
  11. Remove the cotter pin and nut, then using SST 09628-6201 1, remove the lower ball joint from the lower control arm.
  12.  
  13. Remove the 2 bolts and lower ball joint from the steering knuckle.
  14.  

To install:

  1. Install the lower ball joint to the steering knuckle with the 2 bolts and tighten to 83 ft. lbs. (113 Nm).
  2.  
  3. Connect the lower ball joint to the No. 1 lower suspension arm with the nut and tighten to 91 ft. lbs. (123 Nm).
  4.  
  5. Install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further up to 60°.
  6.  
  7. Install the tie rod assy. to the steering knuckle with the nut. Tighten the nut to 40 ft. lbs. (54 Nm).
  8.  
  9. Install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further to 60°.
  10.  
  11. Install the front brake disc
  12.  
  13. Install the front brake caliper assembly.
  14.  
  15. Install the front wheel.
  16.  
  17. Inspect and adjust wheel alignment.
  18.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the lower control arm.
  4.  
  5. Fix the front lower control arm in a vise using aluminium plates.
  6.  
  7. Remove the clip and castle nut.
  8.  
  9. Use SST 09950-40011 (09951-04010, 09952-04010, 09953-04020, 09954-04010, 09955-04051, 09957-04010, 09958-04011) to remove the front lower ball joint from the front lower suspension arm.
  10.  
  11. Inspect the lower control arm ball joint as follows:


    1. Flip the ball joint stud back and forth 5 times.
    2.  
    3. Temporarily install the nut, and use a torque wrench to turn the nut continuously at a rate of 3 to 5 seconds per turn. Take the torque reading on the 5th turn.

      Turning torque: 4.4-53 inch lbs (0.5-6 Nm)
       

    4.  
    5. Check the dust boots for cracks or grease leakage. If the value is not within the specified range, replace the front lower ball joint with a new one.
    6.  

  12.  

To install:

  1. Install the front lower ball joint to the front lower control arm with the nut. Ensure that the thread and taper are free of oil or other foreign matter. Tighten the nut to 120 ft. lbs. (162 Nm) for RWD, and 92 ft. lbs. (125 Nm) for AWD.
  2.  
  3. Install a new clip to the front lower ball joint. Further tighten the nut up to 60° if the holes for the cotter pin are not aligned.
  4.  
  5. Install the lower control arm.
  6.  



Click image to see an enlarged view

Fig. Lower ball joint assembly and related components.-LS 400

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Disconnect the front brake caliper assembly. Support the brake caliper securely.
  6.  
  7. Remove the 2 bolts, ABS speed sensor and wire harness. When removing them from right side do not disconnect the pad wear indicator connector.
  8.  
  9. Remove the clip and nut from the tie rod end.
  10.  
  11. Using SST 09610-20012, disconnect the tie rod end from the steering knuckle.
  12.  
  13. Remove the cotter pin and nut from the lower ball joint.
  14.  
  15. Using SST 09628-6201 1, remove the lower ball joint from the lower control arm.
  16.  
  17. Remove the 2 bolts and lower ball joint from the steering knuckle.
  18.  

To install:

  1. Install the lower ball joint to the steering knuckle. Tighten the 2 bolts to 83 ft. lbs. (113 Nm).
  2.  
  3. Connect the lower ball joint to the lower control arm. Tighten the nut to 112 ft. lbs. (152 Nm) and install a new cotter pin.
  4.  
  5. Connect the lower ball joint to the tie rod end. Tighten the nut to 43 ft. lbs. (59 Nm) and install a new cotter pin.
  6.  
  7. Connect the ABS speed sensor and wire harness.
  8.  
  9. Install the front brake caliper assembly.
  10.  
  11. Install the front wheel.
  12.  
  13. Inspect and adjust wheel alignment.
  14.  
  15. Check ABS sensor signal.
  16.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Separate the front stabilizer link assembly.
  6.  
  7. Separate the skid control sensor wire.
  8.  
  9. Disconnect the front brake caliper assembly. Support the brake caliper securely.
  10.  
  11. Remove the front brake disc
  12.  
  13. Remove the front axle hub sub assembly.
  14.  
  15. Remove the clip and castle nut, then using SST09628-62011, separate the upper ball joint from the steering knuckle.
  16.  
  17. Remove the clip and castle nut, then using SST 09628-62011, separate the tie rod end.
  18.  
  19. Remove the cotter pin and castle nut, then using SST 09628-62011, remove the front lower ball joint assembly from the lower control arm.
  20.  
  21. Inspect the lower ball joint as follows:


    1. Flip the ball joint stud back and forth 5 times before installing the nut.
    2.  
    3. Temporarily install the nut, and use a torque wrench to turn the nut continuously at a rate of 3 to 5 seconds per turn. Take the torque reading on the 5th turn.

      Turning torque: 4.5-31 inch lbs (0.5-3.5 Nm)
       

    4.  
    5. If there is any abnormality, replace the lower ball joint with a new one.
    6.  

  22.  

To install:

  1. Install the lower ball joint front to the lower control arm assy with the castle nut and tighten to 119 ft. lbs. (162 Nm).
  2.  
  3. Install a new clip to the front suspension lower control arm assy. If the holes for the clip are not aligned, tighten the nut up to 60° further.
  4.  
  5. Install the tie rod end to the lower ball joint assy front with the castle nut and tighten to 43 ft. lbs. (59 Nm).
  6.  
  7. Install a new clip to the lower ball joint assy front. If the holes for the clip are not aligned, tighten the nut further up to 60°.
  8.  
  9. Install the steering knuckle to the upper arm assy with the castle nut and tighten to 64 inch lbs. (87 Nm).
  10.  
  11. Install a new cotter pin on the steering knuckle. If the holes for the cotter pin are not aligned, tighten the nut up to 60° further.
  12.  
  13. Install the front axle hub sub assembly.
  14.  
  15. Install the front brake disc
  16.  
  17. Install the front brake caliper assembly.
  18.  
  19. Install the skid control sensor wire.
  20.  
  21. Install the front stabilizer link assembly.
  22.  
  23. Install the front wheel.
  24.  
  25. Inspect and adjust wheel alignment.
  26.  
  27. Check ABS sensor signal.
  28.  

Lower Control Arm



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Front wheel(s)
     
    Front speed sensor
     
    Tie rod assembly
     
    Height control sensor link assembly
     
    Lower part of strut from lower control arm
     
    Stabilizer link assembly
     
    Engine under cover
     

  4.  
  5. Remove the lower control arm as follows :
    1. Support front suspension crossmember with a transmission jack and a block of wood
    2.  
    3. Remove the 2 bolts from the front lower ball joint.
    4.  
    5. Loosen, but do not remove the nut of the lower No. 2 arm bracket assembly.
    6.  
    7. Remove the bolt, washer and nut on the front of the front lower control arm.
    8.  
    9. Remove the 4 bolts, side rail plate and front lower suspension arm with the lower No. 2 arm bracket assembly.
    10.  

  6.  

To install:

  1. Install and temporarily tighten the front lower control arm as follows:
    1. Torque bolt 1 to 150 ft. lbs. (204 Nm); bolt 2 to 63 ft. lbs. (86 Nm); bolt 3 to 37 ft. lbs. (50 Nm).
    2.  
    3. Install bolt from the front and temporarily tighten the bolt, washer and nut.

      Click image to see an enlarged view

      Fig. Lower control arm and side rail plate bolt locations-IS 250 and IS 350

    4.  
    5. Install the front lower ball joint, with 2 bolts and tighten to 89 ft. lbs. (120 Nm).
    6.  

  2.  
  3. Install or connect the following:

    Lower part of strut to lower control arm and temporarily tighten the bolt
     
    Stabilizer link assembly. Torque to 48 inch lbs. (5 Nm).
     
    Tie rods to the steering knuckles and the nuts. Tighten the nut to 50 ft. lbs. (65 Nm) and install a new cotter pin. The prongs of the cotter pin should be firmly wrapped around the flats of the nut.
     
    Front speed sensor. Torque to 4 ft. lbs. (6 Nm).
     
    Height control sensor link assembly. Torque to 48 inch lbs. (5 Nm).
     

  4.  
  5. Stabilize the suspension as follows :
    1. Install the front wheel(s).
    2.  
    3. Lower the vehicle and bounce it up and down several times to stabilize the front suspension.
    4.  
    5. Raise the vehicle.
    6.  
    7. Remove the front wheel.
    8.  
    9. Jack up the front lower suspension armplacing a wood block in between. Apply a load to the front suspension so that the front lower suspension arm is plkaced in a horizontal position.
    10.  

  6.  
  7. Fully tighten the lower strut to lower suspension arm nut and bolt to 116 ft. lbs. (157 Nm).
  8.  
  9. Fully tighten the bolt on the front of the front lower control arm to 100 ft. lbs. (135 Nm).
  10.  
  11. Fully tighten the nut on the lower No. 2 arm bracket assembly to 83 ft. lbs. (113 Nm).

    Engine under cover
     
    Front wheel
     

  12.  
  13. Inspect and adjust front wheel alignment.
  14.  



Click image to see an enlarged view

Fig. Exploded view of the lower suspension-ES 300

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Front wheel(s)
     
    Side fender apron seal
     
    Steering knuckle with the axle hub, from the vehicle
     
    Dust deflector from the knuckle
     
    Cotter pin and the nut from the ball joint stud
     

  4.  
  5. Remove the lower ball joint from the steering knuckle.
  6.  

To install:

  1. Install the lower ball joint onto the steering knuckle and tighten nut to 90 ft. lbs. (123 Nm). Install new cotter pin.
  2.  
  3. Align the hole in the dust deflector with the ABS speed sensor. Using the appropriate driver, install a new dust deflector.
  4.  
  5. Install or connect the following:

    Steering knuckle and hub onto the vehicle
     
    Fender apron seal
     
    Front wheel(s)
     
    Negative battery cable
     

  6.  



Click image to see an enlarged view

Fig. Exploded view of the front suspension-IS 300

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Engine under covers
     
    Level control sensor link
     
    Front subframe brace
     
    No. 2 lower control arm
     
    Brake caliper and rotor
     
    Outer tie rod end
     
    Stabilizer bar link
     
    Lower strut bolt
     
    Lower ball joint
     
    Steering gear
     
    No. 1 lower control arm
     

  4.  

To install:

  1. Installation is the reverse of the removal procedure, while using the following torque values:

    No. 1 lower control arm bolt: 136 ft. lbs. (184 Nm)
     
    Lower ball joint nut: 91 ft. lbs. (123 Nm)
     
    Outer tie rod end nut: 40 ft. lbs. (54 Nm)
     
    Brake caliper bolts: 87 ft. lbs. (118 Nm)
     
    No. 2 control arm-to-No. 1 control arm bolts: 181 ft. lbs. (245 Nm)
     
    Front subframe brace small bolts: 43 ft. lbs. (58 Nm)
     
    Front subframe large bolts: 88 ft. lbs. (119 Nm)
     

  2.  



Click image to see an enlarged view

Fig. Exploded view of the lower ball joint mounting-LS400, LS430

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. If equipped with air suspension, move the height control switch (located in the trunk) to the OFF position.
  4.  
  5. Remove or disconnect the following:

    Tire and wheel assembly
     
    Anti-lock Brake System (ABS) speed sensor and wiring harness from the steering knuckle
     
    Brake caliper support bracket by removing the 2 bolts. Leave the brake line connected. Support the caliper aside by using a piece of wire.
     

  6.  
  7. Loosen the 2 lower ball joint mounting bolts.
    NOTE
    Do NOT remove the bolts.

  8.  
  9. Remove or disconnect the following:

    Clip and nut from the tie rod end
     
    Tie rod end from the steering arm with the proper tool
     
    Lower ball joint mounting bolts from the steering knuckle
     
    Cotter pin and nut from the lower ball joint
     
    Lower ball joint from the lower control arm

    Click image to see an enlarged view

    Fig. Disconnecting the ball joint from the lower suspension arm-LS400, LS430

     

  10.  

To install:

  1. Install or connect the following:

    Ball joint to the lower control arm. Tighten the nut to 112 ft. lbs. (152 Nm) and install a new cotter pin.
     
    Mounting bolts, temporarily, holding the ball joint to the steering knuckle
     
    Tie rod end to the steering knuckle. Tighten the nut to 48 ft. lbs. (65 Nm) and install a new cotter pin.
     
    Lower ball joint bolts to 83 ft. lbs. (113 Nm)
     
    Brake caliper support bracket and tighten the 2 bolts to 87 ft. lbs. (118 Nm)
     
    ABS speed sensor and wiring harness to the steering knuckle
     
    Wheel
     

  2.  
  3. Lower the vehicle.
  4.  
  5. Turn the height control switch ON .
  6.  



Click image to see an enlarged view

Fig. Expanded view, front suspension-ES 330


NOTE
Removal of the lower control arm requires the removal of the engine and transaxle.

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Transverse engine mounting insulator
     
    Engine and transaxle assembly
     
    2 bolts on front side of suspension arm
     
    Bolt and nut on rear side of suspension arm and lower arm
     
    Lower bush stopper
     

  4.  

To install:

  1. Install or connect the following:

    Lower bush arm stopper
     
    2 bolt on the front side to 148 ft. lbs. (200 Nm)
     
    Rear side bolt and nut to 152 ft. lbs. (206 Nm)
     
    Transverse engine mounting insulator to 64 ft. lbs. (87 Nm)
     
    Engine and transaxle assembly
     

  2.  

Stabilizer Bar



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheels.
  4.  
  5. Remove the 2 nuts and left front stabilizer link assy. If the ball joint turns together with the nut, use a hexagon (6mm) wrench to hold the stud. Remove the right side by the same procedures with the left side.
  6.  
  7. Remove the 2 bolts and 2 left front stabilizer brackets No. 1. Remove the right side by the same procedures with the left side.
  8.  
  9. Remove the cotter pin and nut, then using SST09628-6201 1, remove the left and right tie rods from the steering knuckle.
  10.  
  11. Remove the rack & pinion power steering gear assembly.
  12.  
  13. Remove the front stabilizer bar.
  14.  
  15. Remove the stabilizer bar bushings.
  16.  

To install:

Click image to see an enlarged view

Fig. Correct stabilizer bar bushing installation.-ES 300 and ES 330

  1. Install the stabilizer bar bushings. Install the bushing to the inner side of the bushing stopper on the stabilizer bar.
  2.  
  3. Install the front stabilizer bar.
  4.  
  5. Install the rack & pinion power steering gear assembly.
  6.  
  7. Install the tie rods (left and right) to the steering knuckles. Install and tighten the nut to 36 ft. lbs. (49 Nm), then install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further to 60°.
  8.  
  9. Install the 2 left front stabilizer brackets No. 1 with the 2 bolts and tighten to 14 ft. lbs. (19 Nm). Install the right side by the same procedures with the left side.
  10.  
  11. Install the left front stabilizer link assy with the 2 nuts and tighten to 55 ft. lbs. (74 Nm). If the ball joint turns together with the nut, use a hexagon (6mm) wrench to hold the stud. Install the right side by the same procedures with the left side.
  12.  
  13. Install the front wheels.
  14.  
  15. Bleed the power steering fluid and check for leaks.
  16.  
  17. Inspect and adjust the front wheel alignment.
  18.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove engine under cover.
  4.  
  5. Remove the 2 nuts and stabilizer bar link. If the ball joint turns together with the nut, use a hexagon wrench (5mm) to hold the stud. Employ the same manner described above to the other side.
  6.  
  7. Remove the 4 bolts and stabilizer bar.
  8.  
  9. Remove the 2 brackets and bushings from the stabilizer bar.
  10.  

To install:

Click image to see an enlarged view

Fig. Correct stabilizer bar bushing installation.-IS 300

  1. Install 2 bushings and brackets to the stabilizer bar. Install the bushing to the stabilizer bar so that the cutout of the bushing faces the front of the vehicle, as shown in the illustration. Install the bushing to the outside of the paint line on the stabilizer bar.
  2.  
  3. Install the stabilizer bar to the body with the 4 bolts. Tighten the bolts to 17 ft. lbs. (23 Nm).

    Click image to see an enlarged view

    Fig. Stabilizer bar link nuts A and B-IS 300

  4.  
  5. Install the left and right stabilizer bar links. Tighten nut A to 55 ft. lbs. (74 Nm) and nut B to 70 ft. lbs. (95 Nm). If the ball joint turns together with the nut, use a hexagon wrench (5mm) to hold the stud.
  6.  
  7. Install engine under cover.
  8.  



Click image to see an enlarged view

Fig. Front suspension, stabilizer bar and related components.-LS 400

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove steering knuckle.
  4.  
  5. If equipped with coil spring suspension, remove strut assembly.
  6.  
  7. If equipped with air suspension, remove the pneumatic cylinder.
  8.  
  9. Remove the right and left stabilizer bar links.
  10.  
  11. Remove shock absorber lower bracket.
  12.  
  13. Remove the strut bar as follows:


    1. Place matchmarks on the caster adjust cam and bracket.
    2.  
    3. Remove the nut and caster adjust cam, and disconnect the strut bar.
    4.  
    5. Remove the 2 nuts and strut bar from the lower suspension arm.
    6.  

  14.  
  15. Remove the right and left stabilizer bar brackets and bushings.
  16.  
  17. Remove the 4 strut bar bracket bolts.
  18.  
  19. Pull out the strut bar bracket from the stabilizer bar.
  20.  
  21. Pull out the stabilizer bar from the other strut bar bracket.
  22.  

To install:

  1. Install the stabilizer bar to the other strut bar bracket.
  2.  
  3. Install the strut bar bracket to the stabilizer bar.
  4.  
  5. Install the 4 strut bar bracket bolts and tighten to 53 ft. lbs. (72 Nm).
  6.  
  7. Install the right and left stabilizer bar bushings and brackets. Install the bushing to the outside of the paint line. Tighten the bolts to 21 ft. lbs. (28 Nm).

    Click image to see an enlarged view

    Fig. Correct strut bar installation.-LS 400

  8.  
  9. Install the strut bar as follows:


    1. Install the strut bar to the lower suspension arm and tighten the nuts to 121 ft. lbs. (164 Nm).
    2.  
    3. Connect the strut bar and install the caster adjust cam and nut. Tighten the nut to 134 ft. lbs. (181 Nm). Be sure to align the matchmarks of the caster adjust cam and bracket.
    4.  

  10.  
  11. Install the right and left stabilizer bar links. Tighten the nuts to 70 ft. lbs. (95 Nm).

    Click image to see an enlarged view

    Fig. Shock absorber lower bracket installation.-LS 400

  12.  
  13. Install shock absorber lower bracket. Tighten bolt A to 43 ft. lbs. (59 Nm), and bolt B to 83 ft. lbs. (113 Nm).
  14.  
  15. If equipped with coil spring suspension, install strut assembly.
  16.  
  17. If equipped with air suspension, install the pneumatic cylinder.
  18.  
  19. Install steering knuckle.
  20.  
  21. Check ABS sensor signal.
  22.  
  23. Inspect and adjust the front wheel alignment.
  24.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheels.
  4.  
  5. Support the suspension lower arm assy with a jack using a wood block to avoid damage.
  6.  
  7. Remove the bolt and nut to separate the front stabilizer link assy left.
  8.  
  9. Remove the nut and front stabilizer link assy left. Repeat for the right side.
  10.  
  11. Remove the 4 bolts and stabilizer bar front.
  12.  
  13. Remove the bracket and bushing.
  14.  

To install:

  1. Install the bushing and bracket to the stabilizer bar front. Face the cutout of the bushing to the front.
  2.  
  3. Install the stabilizer bar front with the 4 bolts and tighten to 17 ft. lbs. (23 Nm).
  4.  
  5. Install the left front stabilizer link assy. with the nut and tighten to 41 ft. lbs. (55 Nm). Install the bolt and nut and tighten to 41 ft. lbs. (55 Nm). Repeat for the right side.
  6.  
  7. Install the front wheels.
  8.  

With AWD
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Disconnect the negative battery cable. Wait at least 90 seconds before performing any other work
  4.  
  5. Remove the engine assembly with transmission
  6.  
  7. Remove the 2 nuts and the left front stabilizer link assembly. Repeat for the right side. If the ball joint turns together with the nut, use a hexagon (6mm) wrench to hold the stud.
  8.  
  9. Remove the 2 bolts and the left front No. 2 stabilizer bracket from the front suspension crossmember. Repeat for the right side.
  10.  
  11. Remove the 2 front No. 1 stabilizer bar bushings from the front stabilizer bar.
  12.  
  13. Remove the front stabilizer bar from the vehicle.
  14.  

To install:

  1. Install the front stabilizer bar to the vehicle. The identification mark must be on the right side of the vehicle when installing the front stabilizer bar.
  2.  
  3. Install the 2 front No. 1 stabilizer bar bushings outside the bush stoppers on the front stabilizer bar as shown in the illustration. Be sure to install the front No. 1 stabilizer bar bushings so that the cutouts face the front of the vehicle.
  4.  
  5. Install the left front No. 2 stabilizer bracket on the vehicle with the 2 bolts. Repeat for the right side. Tighten the bolts to 57 ft. lbs. (78 Nm).
  6.  
  7. Install the left front stabilizer link assembly with the 2 nuts and tighten to 62 ft. lbs. (84 Nm). Repeat for the right side.
  8.  
  9. Install the engine assembly with transmission
  10.  
  11. Connect the negative battery cable.
  12.  

With RWD
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheels.
  4.  
  5. Remove engine under cover.
  6.  
  7. Remove the left and right rear engine under covers.
  8.  
  9. Disconnect the front height control sensor link assembly.
  10.  
  11. Remove the 2 nuts and the left front stabilizer link assembly. Repeat for the right side. If the ball joint turns together with the nut, use a hexagon (6mm) wrench to hold the stud.
  12.  
  13. Remove the 2 bolts and the left front No. 2 stabilizer bracket from the front suspension crossmember. Repeat for the right side.
  14.  
  15. Remove the 4 bolts and the left front No. 1 stabilizer bracket from the frame. Repeat for the right side.
  16.  
  17. Remove the 2 front No. 1 stabilizer bar bushings from the front stabilizer bar.
  18.  
  19. Remove the front stabilizer bar from the vehicle.
  20.  

To install:

Click image to see an enlarged view

Fig. Identification mark on the stabilizer bar.-IS 250 and IS 350



Click image to see an enlarged view

Fig. Correct stabilizer bar bushing installation.-IS 250 and IS 350

  1. Install the front stabilizer bar to the vehicle. The identification mark must be on the right side of the vehicle when installing the front stabilizer bar.
  2.  
  3. Install the 2 front No. 1 stabilizer bar bushings as shown in the illustration. Be sure to install the front No. 1 stabilizer bar bushings so that the cutouts face the front of the vehicle.
  4.  
  5. Install the left front No. 1 stabilizer bracket as follows:


    1. Press the left front No. 1 stabilizer bracket against the frame toward the outside of the vehicle and temporarily tighten bolt A.
    2.  
    3. Install bolt B, fully tighten bolt A, and then install bolts C and D.
    4.  
    5. Install the skid control sensor wire clamp to the left front No. 1 stabilizer bracket.
    6.  
    7. Tighten the bolts to 36 ft. lbs. (49 Nm).
    8.  
    9. Install the right side following the same procedures as for the left side.
    10.  

  6.  
  7. Install the left front No. 2 stabilizer bracket on the vehicle with the 2 bolts. Repeat for the right side. Tighten the bolts to 36 ft. lbs. (49 Nm).
  8.  
  9. Install the left front stabilizer link assembly with the 2 nuts and tighten to 62 ft. lbs. (84 Nm). Repeat for the right side. If the ball joint turns together with the nut, use a hexagon (6mm) wrench to hold the stud.
  10.  
  11. Connect the front height control sensor link assembly.
  12.  
  13. Install the left and right rear engine under covers.
  14.  
  15. Install engine under cover.
  16.  
  17. Install the front wheels.
  18.  
  19. Inspect and adjust the front wheel alignment.
  20.  

Steering Knuckle



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Remove the front axle hub nut.
  6.  
  7. Disconnect the front speed sensor.
  8.  
  9. Disconnect the front brake caliper assembly.
  10.  
  11. Remove the front brake disc
  12.  
  13. Disconnect the tie rod end.
  14.  
  15. Remove the bolt and 2 nuts, and disconnect the lower front suspension arm sub-assy from the lower ball joint assembly.
  16.  
  17. Using a plastic hammer, separate the front halfshaft assembly from the front axle hub and steering knuckle assembly. Be careful not to damage the boot and ABS speed sensor rotor.
  18.  
  19. Remove the 2 bolts, nuts and steering knuckle with the axle hub.
  20.  
  21. Remove the lower ball joint and hub and bearing assembly from the steering knuckle.
  22.  

To install:

  1. Install the hub and bearing assembly to the steering knuckle.
  2.  
  3. Install the lower ball joint assembly to the steering knuckle.
  4.  
  5. Install the 2 bolts, nuts and front steering knuckle assembly to the bottom of the strut assembly. Tighten the nuts to 155 ft. lbs. (210 Nm). Insert the bolt from the rear side of the vehicle and tighten the nut.
  6.  
  7. Install the halfshaft assembly. Be careful not to damage the outboard joint boot. Be careful not to damage the speed sensor rotor.
  8.  
  9. Install the lower ball joint assy front to the front suspension arm sub-assy lower No. 1 with the bolt and nuts. Tighten the bolt and nuts to 94 ft. lbs. (127 Nm).
  10.  
  11. Install the tie rod assy. to the steering knuckle with the nut. Tighten the nut to 36 ft. lbs. (49 Nm).
  12.  
  13. Install a new cotter pin. If the holes for the cotter pin are not aligned, tighten the nut further to 60°.
  14.  
  15. Install the front brake disc
  16.  
  17. Install the front brake caliper assembly.
  18.  
  19. Connect the front speed sensor.
  20.  
  21. Install the front axle hub nut.
  22.  
  23. Install the front wheel.
  24.  
  25. Inspect and adjust wheel alignment.
  26.  
  27. Check ABS sensor signal.
  28.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove the front wheel.
  4.  
  5. Disconnect the front brake caliper assembly. Support the brake caliper securely.
  6.  
  7. Remove the front brake disc
  8.  
  9. Remove the clip and nut, then using SST 09610-20012, disconnect the tie rod end.
  10.  
  11. Remove the cotter pin and nut, then using SST 09628-6201 1, remove the lower ball joint from the lower control arm.
  12.  
  13. Remove the cotter pin and castle nut, then using SST09628-62011, separate the upper ball joint from the steering knuckle.
  14.  
  15. Remove the steering knuckle from the vehicle.
  16.  
  17. If necessary, remove the lower ball joint and hub and bearing assembly from the steering knuckle.
  18.  

To install:

  1. If necessary, install the hub and bearing assembly and lower ball joint to the steering knuckle.
  2.  
  3. Install the steering knuckle into the vehicle.
  4.  
  5. Connect the upper ball joint to the steering knuckle. Install castle nut and new cotter pin.
  6.  
  7. Connect the lower ball joint to lower control arm. Install castle nut and new cotter pin.
  8.  
  9. Connect the tie rod end to the steering knuckle. Install castle nut and new cotter pin.
  10.  
  11. Install the front brake disc
  12.  
  13. Install the front brake caliper assembly.
  14.  
  15. Install the front wheel.
  16.  
  17. Inspect and adjust wheel alignment.
  18.  

Strut & Coil Spring



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Tire and wheel assembly
     
    Front speed sensor
     
    Stabilizer link assembly
     
    Front upper control arm at the steering knuckle
     

  4.  
  5. Loosen, but do not remove the bolt securing the strut to the lower suspension arm. Support lower arm with a floor jack and block of wood.

    Engine room side cover
     
    Loosen the top strut lock nut
     
    3 upper mounting nuts from the strut tower
     
    Spring support reinforcement
     

  6.  
  7. Slowly lower the jack.
    CAUTION
    Do NOT remove the center nut to the strut at this time. The spring on the strut is under high pressure and can cause serious injury.



    Lower strut bolt
     
    Strut assembly
     

  8.  
  9. Secure the strut in a vise.
  10.  
  11. Compress the coil spring
  12.  
  13. Remove or disconnect the following:

    Upper strut retaining nut
     
    Suspension support
     
    Upper insulator
     
    Bumper
     
    Coil spring
     
    Insulator
     

  14.  

To install:

  1. Install or connect the following:

    Lower insulator
     
    Coil spring end into the step of the lower seat
     
    Bumper to the piston rod
     
    Upper insulator
     
    Upper support to the piston rod, aligning it with the groove in the strut rod

    Click image to see an enlarged view

    Fig. Align the out mark of the upper spring seat with the mark on the upper insulator-IS 250 and IS 350

     

  2.  
  3. Adjust the front suspension support assembly so that the bolts come to the positions shown in the illustration.

    Front spring support reinforcement. Tighten the 3 new upper strut retaining nuts to 49 ft. lbs. (67 Nm).
     
    Lower strut to lower suspension arm. Temporarily tighten.
     
    Front upper control arm at the steering knuckle. Torque to 64 ft. lbs. (87 Nm) and install a new clip.
     
    Front speed sensor. Torque to 4 ft. lbs. (6 Nm).
     
    Stabilizer link assembly. Torque to 48 inch lbs. (5 Nm).
     

  4.  
  5. Stabilize the suspension as follows :
    1. Install the front wheel(s).
    2.  
    3. Lower the vehicle and bounce it up and down several times to stabilize the front suspension.
    4.  
    5. Raise the vehicle.
    6.  
    7. Remove the front wheel.
    8.  
    9. Jack up the front lower suspension armplacing a wood block in between. Apply a load to the front suspension so that the front lower suspension arm is plkaced in a horizontal position.
    10.  

  6.  
  7. Fully tighten the lower strut to lower suspension arm nut and bolt to 116 ft. lbs. (157 Nm).

    Engine room side cover
     
    Tire and wheel assembly
     
    Negative battery cable
     

  8.  
  9. Check the front alignment.
  10.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:
    CAUTION
    Do NOT remove the center nut to the strut at this time. The spring on the strut is under high pressure and can cause serious injury.



    Negative battery cable
     
    Tire and wheel assembly
     
    If equipped with an Anti-lock Brake System (ABS), the ABS speed sensor connector
     
    Brake line from the strut housing
     
    Strut assembly from the steering knuckle
     
    3 upper mounting nuts from the strut tower
     
    Strut assembly
     

  4.  
  5. Temporarily install the bolt and nuts to the lower bracket of the strut to support it and secure the strut in a vise.

    Click image to see an enlarged view

    Fig. Temporarily install the support nuts and bolt to the strut-ES 300

  6.  
  7. Compress the coil spring
  8.  
  9. Remove or disconnect the following:

    Spring seat
     
    Upper strut retaining nut
     
    Suspension support
     
    Upper insulator
     
    Spring
     
    Bumper
     
    Insulator
     

  10.  

To install:

  1. Install or connect the following:

    Lower insulator
     
    Bumper to the piston rod
     
    Coil spring end into the gap of the lower seat
     
    Upper insulator
     
    Upper support to the piston rod, aligning it with the groove in the strut rod

    Click image to see an enlarged view

    Fig. Align the out mark of the upper spring seat with the mark on the upper insulator-ES 300

     

  2.  
  3. Install or connect the following:

    Spring seat. Tighten the new upper strut retaining nut to 36 ft. lbs. (49 Nm).
     

  4.  
  5. Remove the strut from the vise and disassemble the securing nuts and bolt.
  6.  
  7. Rotate the upper support so the lowest bolt on the support aligns with the projection part of the lower spring.
  8.  
  9. Install or connect the following:

    Strut and tighten the strut to body bolts to 59 ft. lbs. (80 Nm)
     
    Strut to the steering knuckle and tighten the bolts to 156 ft. lbs. (211 Nm)
     

  10.  
  11. Run the brake hose through the brake hose bracket and install the clip.
  12.  
  13. Install or connect the following:

    ABS speed sensor and tighten the mounting bolt to 48 inch lbs. (5 Nm)
     
    Brake line to the strut housing and tighten the bolt to 22 ft. lbs. (29 Nm)
     
    Wheel
     
    Negative battery cable
     

  14.  
  15. Check the front alignment.

    Click image to see an enlarged view

    Fig. Matching the spring to the seat

  16.  



Click image to see an enlarged view

Fig. Exploded view of the front strut assembly mounting-IS 300

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Wheel speed sensor and harness clamp
     
    Upper ball joint
     
    Level control sensor link
     
    Stabilizer bar link
     
    Lower strut bolt
     
    Upper strut mount cap
     
    Upper strut mount nuts
     
    Strut assembly
     

  4.  
  5. Install a suitable spring compressor and remove the center nut.
  6.  
  7. Remove the upper strut mount and the coil spring.
  8.  

To install:

  1. Installation is the reverse of the removal procedure, while using the following torque values:

    Upper strut mount center nut: 25 ft. lbs. (34 Nm)
     
    Upper strut mounting nuts: 26 ft. lbs. (35 Nm)
     
    Lower strut mount bolt: 47 ft. lbs. (64 Nm)
     
    Upper ball joint nut: 50 ft. lbs. (65 Nm)
     
    Stabilizer bar link nut: 36 ft. lbs. (49 Nm)
     

  2.  



Click image to see an enlarged view

Fig. Exploded view front suspension-ES 330

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Tire and wheel assembly
     
    Stabilizer link assembly
     

  4.  
  5. Equipped with H-Tems® suspension
    1. Disconnect the wiring connector
    2.  
    3. Disconnect the 3 nuts, harness clamp and shock absorber cap
    4.  
    5. With special tool loosen the piston rod nut. Do NOT remove nut at this time.
    6.  

  6.  
  7. W/out H-Tems®
  8.  
  9. Remove or disconnect the following:

    Loosen lock nut on piston rod. Do NOT remove at this time
     
    Brake hose from strut
     
    Speed sensor
     
    2 bolts and nuts on strut mount on steering knuckle
     
    Strut assembly
     

  10.  
  11. Secure strut in a vise and compress the spring with a spring compressor
  12.  
  13. Remove the piston rod nut and remove the support assembly
  14.  
  15. Remove the shock absorber from the spring assembly
  16.  

To install:

  1. Install shock absorber into the spring coil assembly.
    1. Install coil spring insulator on the piston rod
    2.  
    3. Install coil spring
    4.  
    5. Align the coil spring to properly fit in lower seat
    6.  
    7. Install upper coil spring insulator
    8.  
    9. Install upper coil spring seat with the mark facing to the outside
    10.  
    11. Install new support bearing
    12.  
    13. Install the front suspension support with the mark facing to the outside of the vehicle.
    14.  
    15. Temporarily install the piston rod nut
    16.  

  2.  
  3. Install or connect the following:

    3 nuts to the upper side of the strut assembly. Torque: 59 ft lbs. (80 Nm)
     
    2 bolts and nut to the on the strut mount on the steering knuckle to 155 ft. lbs (210 Nm)
     

  4.  
  5. Fully tighten shock absorber piston nut to 36 ft. lbs (49 Nm)
  6.  
  7. Install or connect the following:

    Flexible brake hose
     
    Speed sensor
     
    W/H-Tems, Install the cap, connector and harness clamp
     
    Front stabilizer link nuts to 55 ft. lbs. (74 Nm)
     
    Front wheel
     

  8.  
  9. Adjust the front wheel alignment
  10.  
  11. Perform speed sensor test
  12.  

The strut removal procedure also includes the separation of the coil spring.

Without Air Suspension
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:
    CAUTION
    Do NOT remove the center nut to the strut at this time.



    Tire and wheel assembly
     
    Steering knuckle from the upper ball joint
     
    Strut assembly from the lower strut bracket
     
    Strut cover from the upper strut mount
     
    3 mounting nuts and remove the strut assembly with the coil spring from the vehicle.
     

  4.  
  5. Compress the coil spring.
  6.  
  7. Remove or disconnect the following:

    Piston rod locknut
     
    Suspension support, coil spring and the bumper
     

  8.  
  9. If disposing the strut, perform the following procedure:
    1. Fully extend the strut rod.
    2.  
    3. Drill a hole within the shaded area shown in the illustration to remove the gas inside.
      CAUTION
      The gas is harmless, but be careful of chips that may fly up when drilling.

    4.  
    5. Properly dispose of the strut assembly.
    6.  

  10.  

To install:

  1. Install or connect the following:

    Spring bumper
     
    Coil spring. Match the end of the coil into the recess of the strut spring seat.
     
    Suspension support to the rod and temporarily install a new nut
     

  2.  
  3. Turn the suspension support so one of the bolts on the support faces the same direction as shown in the illustration.
    NOTE
    Align the bolt so a line drawn between the rod and bolt would be at 90°to the direction of the lower bushing.

  4.  
  5. Tighten the strut rod nut to 20 ft. lbs. (27 Nm) and install the cap.
  6.  
  7. Remove the spring compressor
  8.  
  9. Install or connect the following:

    Strut and tighten the upper retaining nuts to 43 ft. lbs. (58 Nm)
     
    Strut to the lower bracket and temporarily install the nut and bolt
     
    Upper control arm to the steering knuckle. Tighten the nut to 48 ft. lbs. (65 Nm) and install a new cotter pin.
     
    Wheel
     

  10.  
  11. Lower the vehicle.
  12.  
  13. Bounce the vehicle several times to stabilize the suspension.
  14.  
  15. Tighten the lower strut bolt and nut to 116 ft. lbs. (157 Nm).
  16.  
  17. Check the front wheel alignment.
  18.  

Upper Ball Joint



Removal & Installation

The upper ball joint is an integral part of the upper arm and is not replaced separately. The upper ball joint replacement is accomplished by replacing the upper arm.

Upper Control Arm



Removal & Installation
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Wheel
     
    Front strut assembly
     
    Front upper control arm
     

  4.  

To install:

  1. Install or connect the following:

    Upper suspension arm and tighten the mounting bolts to 36 ft. lbs. (49 Nm)
     
    Front strut assembly
     
    Wheel
     
    Negative battery cable
     

  2.  
  3. Lower the vehicle.
  4.  
  5. Check the front wheel alignment.
  6.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Remove or disconnect the following:

    Front wheel
     
    Strut and spring assembly
     
    Inner bolts and the control arm
     

  4.  

To install:

  1. Install or connect the following:

    Control arm and tighten the inner bolts to 44 ft. lbs. (59 Nm)
     
    Strut and spring assembly
     
    Front wheel
     

  2.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Remove or disconnect the following:

    Wheel
     
    Strut or if equipped with air suspension, remove the pneumatic cylinder
     
    Anti-lock Brake System (ABS) speed sensor wire harness from the upper control arm by removing the bolt.
     
    Mounting bolts holding the upper control arm to the vehicle
     
    Upper control arm
     

  6.  

To install:

  1. Install or connect the following:

    Upper control arm and tighten the 2 mounting bolts to 83 ft. lbs. (113 Nm)
     
    ABS speed sensor wire harness to the upper control arm with the attaching bolt
     
    Strut, or if equipped with air suspension, install the pneumatic cylinder
     
    Wheel
     

  2.  
  3. Lower the vehicle.
  4.  
  5. Check and adjust the wheel alignment as necessary.
  6.  

 
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