Toyota Pick-ups/Land Cruiser/4Runner 1970-1988

Lower Control Arm

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REMOVAL & INSTALLATION



1970-88 Pick-Up-2WD
  1. Raise the truck and support it on safety stands. Remove the wheels.
  2.  
  3. On 1970-78 models, remove the coil spring. On 1979-88 models, remove the torsion bar spring.
  4.  
  5. Remove the stabilizer bar and the strut bar from the lower arm.
  6.  
  7. On 1979-88 models, remove the shock absorber.
  8.  
  9. Unbolt and remove lower ball joint.
  10.  

If the lower ball joint is not to be replaced, simply unbolt it from the lower control arm. It is not necessary to separate the ball joint from the steering knuckle.

  1. On 1970-78 models, unbolt and remove the lower control arm at the 4 bolts mounting the lower control arm on the frame. On 1979-88 models, unbolt and remove the nut from the lower arm shaft. Remove the nut from the lower arm shaft. Remove the spring torque arm from the other side.
  2.  
  3. Remove the lower control arm.
  4.  

To install:
  1. Tighten the bolt(s) holding the lower control arm to the frame but do not torque them until the vehicle is on level ground.
  2.  
  3. Lower the truck and torque the lower arm mounting bolt(s) to the following values:

    1970-78: 33-43 ft. lbs.
     
    1979-88: 145-217 ft. lbs.
     

  4.  


CAUTION
Do not tighten the control arm bolts fully until the vehicle is lowered. If the bolts are tightened with the control arm(s) hanging, excessive bushing wear will result.

1986-88 Pick-Up and 4Runner-4WD

See Figure 1

  1. Raise the front of the truck and support it with safety stands. Remove the wheels.
  2.  
  3. Remove the shock absorber.
  4.  
  5. Disconnect the stabilizer bar at the lower arm.
  6.  
  7. Disconnect the lower ball joint from the control arm.
  8.  
  9. Paint matchmarks on the front and rear adjusting cams, remove them and lift out the control arm.
  10.  

To install:
  1. Install the lower arm and adjusting cams to the frame. Temporarily tighten the nuts.
  2.  
  3. Connect the ball joint to the arm. Tighten the nut to 105 ft. lbs. (142 Nm) and install a new cotter pin.
  4.  
  5. Connect the stabilizer bar and tighten the nuts to 19 ft. lbs. (25 Nm).
  6.  
  7. Install the shock absorber.
  8.  
  9. Install the wheels and lower the truck. Bounce the truck several times to set the suspension.
  10.  
  11. Align the matchmarks on the adjusting cams and tighten the nuts to 203 ft. lbs. (275 Nm).
  12.  
  13. Check the alignment.
  14.  



Click image to see an enlarged view

Fig. Fig. 1: Paint matchmarks on the adjusting cams before removing the lower control arm-1986-88 4WD Pick-Up and 4Runner

 
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