- Steering knuckle
- Frame (Cradle)
- Lower control arm
- Steering gear
- Stabilizer bar
The MacPherson strut is a combination coil spring and shock absorber (damper) unit. The strut is removed as an assembly from the car. A special strut compressor must be used to disassemble the strut and coil spring.
REMOVAL & INSTALLATION
- Remove the three upper strut-to-body nuts.
- Loosen the wheel nuts, raise the car, and remove the wheel and tire.
- Remove the brake hose clip-to-strut bolt. Do not disconnect the hose from the caliper.
- Mark the camber cam eccentric adjuster for assembly.
- Remove the two lower strut-to-steering knuckle bolts. Remove the strut from the vehicle.
- Install the strut to the body. Tighten the upper nuts hand-tight.
- Place a jack under the lower arm. Raise the arm and install the lower strut-to-knuckle bolts. Align the camber eccentric cam with the marks made during removal. Tighten the strut-to-knuckle bolts to 140 ft. lbs. (190 Nm), and the strut-to-body nuts to 18 ft. lbs. (24 Nm).
- Install the brake hose clip on the strut.
- Install the wheel and lower the car.
If a new strut damper has been installed, the front end will have to be realigned.
A MacPherson strut compressor tool, GM part J-26584 or the equivalent must be used.
- Clamp the strut in a vise.
- Install the compressor on the strut. Install the compressor adapters, if used.
- Compress the spring approximately 1 / 2 in. Do not bottom the spring or the strut rod.
- Remove the strut shaft top nut and the top mount and bearing assembly from the strut.
- Unscrew the compressor until all spring tension is relieved. Remove the spring.
- Place the strut into the compressor. Rotate the strut until the spindle mounting flange is facing out, away from the compressor.
- Place the spring on the strut. Make sure it is properly seated on the strut bottom plate.
- Install the strut spring assembly on the spring. Install the compressor adapters, if used.
- Tighten the strut compressor until it just contacts the spring seat, or the adapters if a tool with adapters is being used.
- Thread an alignment rod, GM tool J-26584-27 or the equivalent, onto the strut damper shaft, hand-tight.
- Compress the spring until approximately 1 1 / 2 in. of the damper rod can be pulled up through the top spring seat. Do not compress the spring until it bottoms.
- Remove the alignment rod and install the top mount and nut. Tighten the nut to 68 ft. lbs. (90 Nm).
- Unscrew the compressor and remove the strut.