The halfshaft assemblies used on the Fiero are the flexible units consisting of an inner Tri-Pod joint and an outer Constant Velocity (CV) joint. The inner joint is completely flexible, capable of up and down, in and out movement. The outer joint is only capable of up and down movement.
- Clicking noise in turn: inspect for worn or damaged outer CV joint and outer dust boots.
- Clunk when accelerating from coast to drive: inspect for worn or damaged outer CV joint.
- Shudder or vibration during acceleration: inspect for excessive joint angle, excessive toe, incorrect trim height, worn or damaged outer CV joint and sticking spider assembly.
- Vibration at highway speeds: inspect for out of balance rear tires or wheels, out of round tires or wheels, worn outer CV joint and binding or tight joint.
Some vehicles use a gray boot on the halfshaft axle joints. Use boot protector J-33162 on these boots. All other boots are made of thermoplastic material black and do not require use of a boot protector.
REMOVAL & INSTALLATION
- Disconnect the negative (-) battery cable.
- Raise the car and support with jackstands. Remove the wheel and tire.
- Remove the hub nut by inserting a drift punch through the caliper into the rotor fins to hold the axle stationary.
- Install a drive boot seal protector No. J-28712, or its equivalent, on the outer seal, if equipped with a gray boot.
- Disconnect the toe link rod, trailing arm and lateral control arm at the knuckle assembly.
- Remove the brake caliper and rotor.
- Using tool No. J-28468 or its equivalent hub spindle remover, remove the halfshaft from the hub and bearing assembly.
- Support the halfshaft with a piece of wire to the body.
- Remove the clamp bolt from the lower control arm ball stud.
- Separate the knuckle from the lower control arm.
- Pull the strut, knuckle and caliper assembly away from the body and secure it in this position.
- Using tool no. J-33008 and No. J-26l9-01 or their equivalents, disengage the snaprings which are retaining the halfshaft at the transaxle, then remove the drive axle.
If the drive axle is being replaced, replace the knuckled seal.
- Install the halfshaft seal protectors J-33162 for gray silicone boots.
- Start the halfshaft into the transaxle and push until it snaps into place.
- Coat the outer splines with anti-seize compound and align the hub with the halfshaft. Slide the splines into the hub.
- Loosely install the strut mounting bolts.
- Install the fixed adjusting link, lateral control arm through bolt. Torque the bolt to 37 ft. lbs. (50 Nm) +90°.
- Install the trailing arm at the knuckle and torque the bolt to 44 ft. lbs. (60 Nm) +90°.
- Install the strut mounting bolts at the knuckle and torque to 140 ft. lbs. (190 Nm).
- Install the brake caliper and rotor.
- Insert a drift punch through the caliper into the rotor fins to hold the rotor stationary. Torque the new hub nut and washer to 183-208 ft. lbs. (250-285 Nm).
- Remove the halfshaft seal boot protector if used.
- Install the wheel and tire assembly. Torque the lug nuts to 100 ft. lbs. (136 Nm).
- Recheck all procedures to ensure proper installation and tightening. Road test vehicle to check for proper operation.
- Use a brass drift to tap off deflector ring.
- To install, use a 2 1 / 2 in. pipe coupling and a piece of sheet metal to turn the deflector ring onto the joint as in Step 1.
- Cut and remove the boot retaining clamps with wire cutters.
- Remove the race retaining ring with snapring pliers. Remove the joint and boot assembly from the axle shaft. Refer to Step 2 of the CV joint procedures.
- Flush the grease from the joint and repack the boot with half of the grease provided with the new boot.
- Install the new boot and clamps first. Second, install the joint and snap the race retaining ring into place. Put the remainder of the grease into the joint.
- Using an axle seal clamp tool J-35910 and a torque wrench, torque the small clamp to 100 ft. lbs. (136 Nm). Torque the large clamps to 130 ft. lbs. (176 Nm).
- Remove the large boot clamp and joint assembly from the axle as previously mentioned. Clean out the grease from the joint to aid in disassembly.
- Use a brass drift to gently tap on the cage until tilted enough to remove the first ball. Remove the other balls in a simular manner.
- Pivot the cage and inner race at 90° to the center line of the outer race with the cage windows aligned with the lands of the outer race. Lift the cage out with the inner race. Refer to Step 3 of the CV joint procedures.
- Rotate the inner race up and out of the cage as in Step 2. Clean all parts with solvent and blow dry with compressed air.
- Lightly coat the ball grooves with the provided CV grease.
- Install the inner race into the cage, cage into the outer race and balls into the cage as removed.
- Refill the joint with half the grease provided. Install the boot and clamps. Install the joint onto the axle. Fill the joint with the remaining grease and torque the clamps as in the previous procedure.
- Cut the clamps from the boot.
- Remove the axle from the Tri-Pod housing as in Step 4.
- Remove the spider assembly from the axle by removing the shaft retaining snaprings.
- Clean all metal parts with solvent and blow dry with compressed air.
- Refill the housing with half of the grease provided with the new boot. Install the boot and clamps first, then the spider and snapring assembly onto the axle.
- Position the axle into the Tri-Pod housing. Install the remaining grease into the joint.
- Using a seal clamp tool J-35910 or equivalent, torque the small clamp to 100 ft. lbs. (136 Nm) and torque the large clamp to 130 ft. lbs. (176 Nm) as in Step 4. Side cutters can be used to tighten the boot clamps, but care must be used so not to cut the new clamps.