Jack up the lower control arm. Check the front wheel play. Replace the lower ball joint if the play at the wheel rim exceeds 1mm vertical motion or 2mm horizontal motion. Be sure that the dust covers are not torn and they are securely glued to the ball joints.
REMOVAL & INSTALLATION
On models equipped with upper and lower ball joints-if both ball joints are to be removed, always remove the lower and then the upper ball joint.Corona
EXCEPT MACPHERSON STRUT
- Remove the hubcap and loosen the lug nuts.
- Raise the front of the car and support it with jackstands.
- Remove the lug nuts and the wheel. Place a jack under the spring seat on 1974-76 models, and compress the spring by raising the jack.
On models with Electro Sensor Panel (ESP), unfasten the wiring from the brake sensor, and remove the clamp from the lever control arm.
- Remove the cotter pin and the castellated nut from the ball joint.
- Use a ball joint puller to detach the lower ball joint from the steering knuckle.
- Remove the securing bolt and withdraw the ball joint as detailed in and check alignment.
- Support the vehicle securely by the front suspension cross member.
- Remove the engine lower cover. Disconnect the stabilizer bar at the lower arm and strut bar at the lower arm. Note the order of disassembly of all rubber bushings and collars.
- Remove bolts attaching the lower arm to the bottom of the strut.
- Using a tool designed for the purpose, press the tie rod end out of the steering knuckle arm.
- Remove the bolt running through the crossmember and remove the control arm from the crossmember.
- Remove the cotter pin and castle nut, and then press the steering knuckle arm off the lower control arm with an appropriate tool. The lower arm and ball joint must be replaced as an assembly if either is defective.
In installation, tighten the parts as follows:
Control arm-to-crossmember bolt (do not tighten until after the suspension is assembled and weight is put on it so normal ride height is achieved) 65.1-94 ft. lb.
- Remove the hubcap and loosen the lugnuts.
- Raise and support the front of the vehicle.
- Remove the lugnuts and wheel.
- Unfasten the stabilizer bar.
- Measure the distance between the serrated bolt holes on the front side of the torque strut and the attachment nut on the rear side to aidin installation. Remove the strut.
- On Crown models, disconnect the brake line.
- Remove the shock absorber, as detailed in the appropriate following section.
- Install the coil spring compressor on the third coil from the bottom. Tighten the compressor until the load is removed from the spring.
- Remove the lower ball joint with a ball joint puller.
- Unbolt and remove the lower control arm.
- Carefully and slowly remove the spring compressor and withdraw the spring.
- Inspect the components of the suspension which were removed for signs of wear or damage. Replace parts as required.
- Install the lower control arm but do not fully tighten the mounting bolts.
- Compress the spring with the spring compressor and install the spring.
Keep the spring compressed after installation.
- Install the lower ball joint on the steering knuckle and tighten it to the specifications given in the Front Spring Installation specifications chart.
- Install the strut on the lower control arm and temporarily install the other end on the frame.
- The distance between the serrations and the nut should be the same as that measured during removal.
- If a ne4w strut is used, check, the chart specifications for the proper installation distance.
- Carefully install the rear side of the strut to the control arm and tighten the mounting nut to the specifications in the chart.
- Slowly remove the spring compressor from the coil spring.
- Install the shock absorber.
- Install the stabilizer bar bracket and the bar.
Be sure to assemble the parts of the bracket in the order in which they were removed.
- Install the wheel, remove the jackstands, and lower the car.
- Tighten the lower control arm and strut front mont to the specifications given in the chart.
These parts should be tightened with the equivalent of passenger weight in the car.
- Check the wheel alignment, after completing installation.
The ball joint and control arm cannot be separated from each other. If one fails, then both must be replaced as an assembly, in the following manner:
- Perform Steps 1-7 of the first Front Spring Removal and Installation procedure. Skip Step 6.
- Remove the stabilizer bar securing bolts.
- Unfasten the torque strut mounting bolts.
- Remove the control arm mounting bolt and detach the arm from the front suspension member.
- Remove the steering knuckle arm from the control arm with a ball joint puller.
- Installation is the reverse of removal. Note the following, however:
- When installing the control arm on the suspension member, tighten the bolts partially at first.
- Complete the assembly procedure and lower the car to the ground.
- Bounce the front of the car several times. Allow the suspension to settle, then tighten the lower control arm bolts to 51-65 ft. lb.
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.
- Remember to lubricate the ball joint. Check front end alignment.