LS400 1990-1997

Wheel Bearings

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Adjustment



Specific to:

Lexus LS400 1993-1996

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 0.0028 inch (0.07mm).


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

Removal & Installation



Specific to:

Lexus LS400 1990-1999

  1. Before servicing the vehicle, refer to the precautions in the beginning of this 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:

    Negative battery cable
     
    Rear wheel(s)
     
    Height control sensor link from the lower control arm
     
    Anti-lock Brake System (ABS) speed sensor and wiring harness
     
    Brake caliper bracket from the rear axle carrier by removing the 2 bolts. Support the caliper with a piece of wire.
     
    Brake rotor
     
    Parking brake shoes and cable
     
    Cotter pin, lock cap and the nut holding the halfshaft to the rear axle.
     
    Suspension member brace by removing the 2 bolts.
     
    Halfshaft bolts and washers
     
    Halfshaft from the vehicle
     
    Strut rod
     

  6.  
  7. Place matchmarks on the adjusting cam and body for the No. 1 control arm.
  8.  
  9. Remove or disconnect the following:

    Nut and adjusting cam
     
    Nut on the axle carrier side of the No. 1 lower control arm
     
    Separate the control arm from the axle carrier
     
    No. 1 lower control arm
     
    Stabilizer bar link from the No. 2 lower control arm.
     

  10.  
  11. Place matchmarks on the adjusting cam and body.
  12.  
  13. Remove or disconnect the following:

    Nut and adjusting cam from the No. 2 lower control arm.
     
    Nut and bolt holding the No. 2 lower control arm to the axle carrier.
     
    No. 2 control arm from the vehicle.
     
    Nut and bolt on the lower side of the strut assembly.
     
    2 upper control arm set nuts and bolts.
     
    Axle carrier with the upper control arm.
     

  14.  
  15. Secure the axle carrier in a vise.
  16.  
  17. Remove or disconnect the following:

    Nut holding the upper control arm to the axle carrier and remove the control arm.
     
    Dust deflector. Use a suitable prytool.
     
    Oil seal

    Click image to see an enlarged view

    Fig. Removing the oil seal (inner)

     

  18.  
  19. Remove the 2 bolts and nuts and shift the backing the plate towards the hub side (outside).
  20.  
  21. Remove or disconnect the following:

    Axle hub

    Click image to see an enlarged view

    Fig. Removing the axle hub from the axle carrier

     
    Backing plate.
     
    Inner race (outside) from the axle hub

    Click image to see an enlarged view

    Fig. Removing the inner race (outside) from the axle hub

     
    Oil seal (outer) from the axle

    Click image to see an enlarged view

    Fig. Removing the oil seal (outer)

     
    Snapring from inside the axle housing
     
    Bearing from the axle housing
     

  22.  

To install:

  1. Install or connect the following:

    New bearing to the axle housing
     
    Snapring to the axle carrier, using snapring pliers.
     
    New outer oil seal. Coat the oil seal lip with multipurpose grease.

    Click image to see an enlarged view

    Fig. Installing the oil seal (outer)

     
    Backing plate to the axle housing. Do not install the bolts or nuts at this time.
     
    Inner race (inside) to the axle housing
     
    Axle hub to the axle housing
     
    Backing plate in position. Tighten the bolts and nuts to 43 ft. lbs. (59 Nm).
     
    New oil seal (inner) to the axle housing. Coat the oil seal lip with multipurpose grease.

    Click image to see an enlarged view

    Fig. Installing the oil seal (inner)

     
    New dust deflector. Be sure to align the hose for the ABS speed sensor in the dust deflector and axle carrier.
     
    Upper control arm to the axle carrier by installing the nut. Tighten the nut to 80 ft. lbs. (108 Nm).
     
    Axle carrier and upper control arm to the vehicle as an assembly.
     
    2 upper control arm set bolts and tighten the bolts to 121 ft. lbs. (164 Nm).
     
    Bolt and nut holding the strut to the axle carrier. Tighten to 101 ft. lbs. (137 Nm).
     
    Bolt and nut connecting the No. 2 lower control arm to the axle carrier. Tighten the bolt to 60 ft. lbs. (81 Nm).
     
    Nut and adjusting cam to hold the No. 2 lower control arm to the body. Align the adjusting cam marks and tighten the nut to 57 ft. lbs. (78 Nm).
     
    Stabilizer bar link to the No. 2 lower control arm and tighten the nut to 48 ft. lbs. (65 Nm).
     
    No. 1 lower control arm to the axle carrier and body. Install the nut to hold the No. 1 lower control arm to the axle carrier. Tighten the nut to 43 ft. lbs. (59 Nm).
     
    Nut and adjusting cam to hold the No. 1 lower control arm to the body. Align the matchmarks and tighten the nut to 57 ft. lbs. (78 Nm).
     
    Strut rod to the axle carrier and body. Install the bolt and nut to hold the strut rod to the body. Tighten to 57 ft. lbs. (78 Nm).
     
    Bolt and nut to hold the strut rod to the axle carrier. Tighten to 136 ft. lbs. (184 Nm)
     
    Parking brake shoes and cable.
     
    Outboard joint side of the halfshaft and align the matchmarks on the side gear shaft and the halfshaft. Coat the threads with clean oil and install the hexagon bolts. Tighten bolts to 61 ft. lbs. (83 Nm).
     
    Suspension member brace with the 2 bolts. Tighten the 2 bolts to 37 ft. lbs. (50 Nm).
     
    Nut to hold the halfshaft to the rear axle. Tighten the nut to 213 ft. lbs. (289 Nm).
     
    Lock cap and cotter pin
     
    Brake disc to the axle hub with the matchmarks aligned. Install the 2 screws and tighten the screws to 48 inch lbs. (5 Nm).
     
    Brake caliper to the vehicle and install the 2 bolts. Tighten the bolts to 77 ft. lbs. (104 Nm).
     
    ABS speed sensor and wiring harness
     
    Height control sensor link with the matchmarks aligned. Tighten the nut to 48 inch lbs. (5 Nm).
     
    Rear wheel(s)
     
    Negative battery cable
     

  2.  
  3. Lower the vehicle and turn ON the air suspension switch.
  4.  

 
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