Toyota Corolla 1970-1987 Repair Guide

Lower Control Arm

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REMOVAL & INSTALLATION



RWD Models

The ball joint and control arm cannot be separated from each other. If one fails, then both must be replaced as an assembly

  1. Remove the front MacPherson strut assembly.
  2.  
  3. Remove the stabilizer bar securing bolts.
  4.  
  5. Unfasten the torque strut mounting bolts.
  6.  
  7. Remove the control arm mounting bolt and detach the arm from the front suspension member.
  8.  
  9. Remove the steering knuckle arm from the control arm with a ball joint puller.
  10.  
  11. Inspect the suspension components which were removed for wear or damage. Replace any parts, as required.
  12.  

To install:
  1. Install the control arm on the suspension member, tighten the bolts partially at first.
  2.  
  3. Complete the assembly procedure and lower the car to the ground.
  4.  
  5. Bounce the front of the car several times. Allow the suspension to settle, then tighten the lower control arm bolts to 51-65 ft. lbs. (69-88 Nm) Tighten knuckle arm bolts to 42-56 ft. lbs. (57-76 Nm), the tie rod end-to-knuckle bolt to 37-50 ft. lbs. (50-68 Nm) and the stabilizer bar nut to 66-90 ft. lbs. (89-122 Nm).
  6.  

Use only the bolt which was designed to fit the lower control arm. If a replacement is necessary, see an authorized dealer for the proper part. Use new cotter pins upon installation

  1. Remember to lubricate the ball joint. Check front end alignment.
  2.  

FWD Models

Refer to exploded view of front suspension components as necessary

  1. Raise and safely support the vehicle. Do not place the stands under the control arms.
  2.  
  3. Remove the nuts and bolts holding lower ball joint-to-lower arm.
  4.  
  5. Remove the nut holding the sway bar link to the control arm, then disconnect the link and bar from the control arm as necessary.
  6.  
  7. Remove the nuts and bolts holding the control arm to the body.
  8.  
  9. Remove the control arm from the car and check it carefully for cracks, bends or crimps in the metal or for corrosion damage. Check the rubber bushing and replace it if any sign of damage or deformation is found.
  10.  

To install:
  1. Install (replace it if necessary) the bushing and tighten its retaining nut to 76 ft. lbs. (103 Nm).
  2.  

Never reuse a self-locking nut and always replace cotter pins. Rock the vehicle up and down to settle the suspension before final torque

  1. Position the control arm to the body, then install the nuts and bolts. The front nut and bolt should be tightened to 105 ft. lbs. (142 Nm) and the rear to 72 ft. lbs. (97 Nm).
  2.  
  3. Connect the lower arm to the ball joint (steering knuckle). Torque retaining bolts to 47-59 ft. lbs. (64-80 Nm)
  4.  
  5. Reinstall the sway bar and link. Check front wheel alignment.
  6.  

 
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