GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

Halfshafts

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REMOVAL & INSTALLATION



See Figure 1



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Fig. Fig. 1: A complete halfshaft assembly


WARNING
Use care when removing the drive axle. Tri-pots can be damaged if the drive axle is overextended.

Except Rear Axle - 6000 STE AWD

See Figures 2, 3, 4 and 5

  1. Remove the hub nut and discard. A new hub nut must be used for reassembly.
  2.  
  3. Raise and safely support the vehicle. Remove the wheel and tire assembly.
  4.  
  5. Install an halfshaft boot seal protector onto the seal. The use of protector J-34754 or an equivalent is advised.
  6.  



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Fig. Fig. 2: The use of protector J-34754 or an equivalent is advised



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Fig. Fig. 3: Apply the protector as shown on the shaft

  1. Disconnect the brake hose clip from the strut, but do not disconnect the hose from the caliper. Remove the brake caliper from the spindle and support the caliper with a length of wire. Do not allow the caliper to hang by the brake hose unsupported.
  2.  
  3. Mark the camber alignment cam bolt for reassembly. Remove the cam bolt and the upper attaching bolt from the strut and spindle.
  4.  
  5. Pull the steering knuckle assembly from the strut bracket.
  6.  
  7. Remove the halfshaft from the transaxle.
  8.  
  9. Using spindle remover tool J-28733 or equivalent, remove the halfshaft from the hub and bearing assembly. Do not allow the halfshaft to hang unsupported. If necessary, support using a length of wire in order to prevent component damage.
  10.  



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Fig. Fig. 4: With the other components disconnected from the axle shaft, it will slide out

To install:
  1. If a new halfshaft is to be installed, a new knuckle seal should be installed first along with a boot seal protector when necessary.
  2.  



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Fig. Fig. 5: Position a drift through the caliper and into the rotor to hold it still while tightening the hub nut

  1. Loosely install the halfshaft into the transaxle and steering knuckle.
  2.  
  3. Loosely attach the steering knuckle to the suspension strut.
  4.  
  5. The halfshaft is an interference fit in the steering knuckle. Press the axle into place, then install the hub nut. When the shaft begins to turn with the hub, insert a drift through the caliper into one of the cooling slots in the rotor to keep it from turning.
  6.  

On some vehicles, the hub flange has a notch in it which can be used to prevent the hub and the shaft from turning, when one of the hub bearing retainer bolts is removed, by placing a longer bolt put in its place through the notch.

  1. Tighten the hub nut to 70-75 ft. lbs. (95-103 Nm) to completely seat the shaft.
  2.  
  3. Install the brake caliper. Tighten the caliper mounting bolts to 30 ft. lbs. (41 Nm).
  4.  
  5. Load the hub assembly by lowering it onto a jackstand. Align the camber cam bolt marks made during removal, install the bolt and tighten to 140 ft. lbs. (190 Nm). Tighten the upper nut to the same value.
  6.  
  7. Install the halfshaft all the way into the transaxle using a suitable tool inserted into the groove provided on the inner retainer. Tap the tool until the shaft seats in the transaxle. Remove the boot seal protector.
  8.  
  9. Connect the brake hose clip the strut. Install the tire and wheel, lower the vehicle and tighten the hub nut to 192 ft. lbs. (260 Nm).
  10.  

Rear Axle - 6000 STE AWD

See Figure 6

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the tire and wheel assembly.
  4.  
  5. Disconnect the parking brake cable end from the bracket.
  6.  
  7. Remove the bolts securing the brake line and the Electronic Ride Control (ERC) sensor bracket to the control arm. Loosen the anti-lock brake sensor bolt and mover the sensor out of the way.
  8.  
  9. Insert a suitable tool through the caliper into the rotor to prevent the rotor from turning.
  10.  
  11. Remove the shaft nut and washer using special tool J-34826. Discard the shaft nut.
  12.  
  13. Remove the 2 brake caliper bolts and remove the caliper. Support the caliper using a length of wire.
  14.  

Do not allow the caliper to hang by the brake hose unsupported.

  1. Remove the rotor from the hub and bearing assembly.
  2.  
  3. Install leaf spring compression tool J-33432 or equivalent.
  4.  
  5. Remove the 3 bolts mounting the hub and bearing to the knuckle.
  6.  
  7. Remove the hub and bearing assembly from the knuckle using special tool J-28733-A or equivalent.
  8.  
  9. Remove the bolts and nut plate attaching the lower strut mount to the knuckle. Scribe the position of the upper bolt prior removing.
  10.  
  11. Install a suitable CV-boot protector to prevent damage to the boot.
  12.  
  13. Swing the knuckle downward and away from the driveshaft.
  14.  
  15. Remove the drive axle from the differential using a suitable slide hammer.
  16.  



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Fig. Fig. 6: A slide hammer is used to remove the drive axle from the differential on the 6000 STE AWD

To install:
  1. Install the drive axle to the differential. Ensure positive engagement by pulling outward on the inner axle end. Grasp the housing only. Do not grasp and pull on the axle shaft.
  2.  
  3. Swing the knuckle up to the lower strut mount.
  4.  
  5. Position the nut plate and install the lower strut mount bolts to the knuckle. Align the top bolt with scribe marks before tightening the bolts. Tighten the bolts to 148 ft. lbs. (200 Nm).
  6.  
  7. Remove the CV-boot protector.
  8.  
  9. Secure the hub and bearing assembly to the knuckle and axle spline.
  10.  
  11. Install the hub and bearing attaching bolts. Tighten to 61 ft. lbs. (84 Nm).
  12.  
  13. Remove the leaf spring compression tool.
  14.  
  15. Install the rotor to hub and bearing assembly.
  16.  
  17. Install the brake caliper to the rotor and install the retaining bolts. Tighten the bolts to 38 ft. lbs. (51 Nm).
  18.  
  19. Install the anti-lock brake sensor to the knuckle and install the retaining bolt. Using a non-ferrous feeler gauge, adjust the sensor gap to 0.028 in. (0.7mm). Tighten the adjustment screw to 19 inch lbs. (2.2 Nm).
  20.  
  21. Connect the parking brake cable end into the bracket.
  22.  
  23. Install the shaft washer and new torque prevailing nut. Hold the rotor with a suitable to prevent the axle from turning while tightening. Tighten to 192 ft. lbs. (260 Nm).
  24.  
  25. Install the tire and wheel assembly.
  26.  
  27. Check the rear wheel camber. Adjust as necessary.
  28.  

If the lower strut to knuckle bolts are properly aligned with the scribe marks, no camber adjustment should be necessary.

  1. Lower the vehicle.
  2.  
  3. Tighten the lug nuts.
  4.  

OVERHAUL



Outer Joint

See Figures 7, 8, 9, 10, 11, 12 and 13

  1. Remove the axle shaft.
  2.  
  3. Cut off the seal retaining clamp. Using a brass drift and a hammer, lightly tap the seal retainer from the outside toward the inside of the shaft to remove from the joint.
  4.  
  5. Use a pair of snapring pliers to spread the retaining ring apart. Pull the axle shaft from the joint.
  6.  



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Fig. Fig. 7: Spread the ears on the race retaining ring with tool J-8059, then remove the CV-joint assembly from the axle shaft

  1. Using a brass drift and a hammer, lightly tap on the inner race cage until it has tilted sufficiently to remove one of the balls. Tilt the cage in the opposite direction to remove the opposing ball. Remove the other balls in the same manner.
  2.  



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Fig. Fig. 8: Using a brass drift and a hammer, lightly tap on the inner race cage until it has tilted sufficiently to remove one of the balls. Tilt the cage in the opposite direction to remove the opposing ball. Remove the other balls in the same manner

  1. Position the cage and the inner race 90° to the centerline of the outer race, then align the cage windows with the lands of the outer race.
  2.  



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Fig. Fig. 9: Position the cage and the inner race 90° to the centerline of the outer race, then align the cage windows with the lands of the outer race

  1. Rotate the inner race 90° to the centerline of the cage with the lands of the inner race aligned with the windows of the cage.
  2.  



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Fig. Fig. 10: Rotate the inner race 90° to the centerline of the cage with the lands of the inner race aligned with the windows of the cage

  1. Pivot the inner race into the cage window and remove the inner race.
  2.  
  3. Clean all parts thoroughly and inspect for wear, make sure all parts are dry.
  4.  

To install:
  1. Assemble the new swage ring on the neck of the seal. DO NOT SWAGE.
  2.  
  3. Slide the swage ring onto the axle shaft, then position the neck of the seal in the seal groove on the axle shaft.
  4.  



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Fig. Fig. 11: Tool J-41048 or a suitable vise can be used for this procedure

  1. For the swage ring, mount the swage clamp tool, J-41048 in a vise and proceed:
    1. Position the outboard end of the shaft assembly in the tool.
    2.  
    3. Align the top of the seal neck on the bottom die using the indicator line.
    4.  
    5. Place the top half of the tool on the lower half of the tool.
    6.  
    7. Make sure there are no pinch points on the seal before proceeding. This could cause damage to the seal.
    8.  
    9. Insert the bolts, then tighten by hand until snug.
    10.  
    11. Make sure that the seal, housing and swage ring all remain in alignment.
    12.  
    13. Continue to tighten each of the bolts 180° at a time, alternating until; both of the sides are bottomed.
    14.  

  2.  
  3. Put a light coat of the grease provided in the rebuilding kit onto the ball grooves of the inner race and outer joint.
  4.  



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Fig. Fig. 12: Put a light coat of the grease provided in the rebuilding kit onto the ball grooves of the inner race and outer joint

  1. Hold the inner race 90° centerline of the cage with the lands of the inner race aligned with the windows of the cage and insert the inner race into the cage.
  2.  
  3. Hold the cage and inner race 90° to centerline of the outer race, then align the cage windows with the lands of the outer race.
  4.  
  5. Assemble the cage and inner race into the outer race. Be sure that the retaining ring side of the inner race faces the axle shaft.
  6.  
  7. Insert the first chrome ball, then tilt the cage in the opposite direction to insert the opposing ball. Repeat this process until all of the balls are inserted.
  8.  
  9. Place approximately half of the grease from the service kit inside the seal, then pack the CV-joint with the remaining grease.
  10.  
  11. Push the CV-joint onto the axle shaft until the retaining ring is seated in the groove on the axle shaft.
  12.  



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Fig. Fig. 13: Push the CV-joint onto the axle shaft until the retaining ring is seated in the groove on the axle shaft

  1. Slide the large end of the seal with the a large seal clamp in place over the outside of the CV-joint race, then locate the seal lip in the groove on the race.
  2.  
  3. The seal must not be dimpled, stretched or out of shape in any way. If it is not in shape, equally pressurize the seal and shape it properly by hand.
  4.  
  5. Crimp the retaining ring clamp with tool J-35910 to 130 ft. lbs. (176 Nm).
  6.  
  7. Check the crimp profile for correct shape and ear gap.
  8.  

Outer Boot

See Figures 14, 15 and 16

  1. Raise and support the vehicle safely.
  2.  
  3. Remove the front tire and wheel assembly.
  4.  
  5. Remove the caliper bolts. Remove the caliper and support using a length of wire.
  6.  
  7. Remove the hub nut, washer and wheel bearing.
  8.  
  9. Using a brass drift, lightly tap around the seal retainer to loosen it. Remove the seal retainer.
  10.  
  11. Remove the seal retaining clamp or ring and discard.
  12.  



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Fig. Fig. 14: Removing the outer band from the CV-boot



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Fig. Fig. 15: Removing the inner band from the CV-boot

  1. Using snapring pliers, remove the race retaining ring from the halfshaft.
  2.  
  3. Pull the outer joint assembly and the outboard seal away from the halfshaft.
  4.  
  5. Flush the grease from the joint and repack with half of the grease provided. Put the remainder of the grease in the seal.
  6.  

To install:


Click image to see an enlarged view

Fig. Fig. 16: Check the CV-boot for wear

  1. Check the boots for wear.
  2.  
  3. Assemble the inner seal retainer, outboard seal and outer seal retainer to the halfshaft. Push the joint assembly onto the shaft until the retaining ring is seated in the groove.
  4.  
  5. Slide the outboard seal onto the joint assembly and secure using the outer seal retainer. Using seal clamp tool J-35910 or equivalent, tighten the outer clamp to 130 ft. lbs. (176 Nm) and the inner clamp to 100 ft. lbs. (136 Nm).
  6.  
  7. Install the wheel bearing, washer and hub nut. Tighten the hub nut to 192 ft. lbs. (260 Nm).
  8.  
  9. Secure the caliper with the caliper attaching bolts.
  10.  
  11. Install the front tire and wheel assembly.
  12.  
  13. Lower the vehicle.
  14.  
  15. Tighten the lug nuts.
  16.  

Inner Joint

See Figures 17, 18, 19, 20 and 21

  1. Remove the axle shaft.
  2.  
  3. For swag ring removal use a hand grinder to cut through the ring.
  4.  
  5. Remove the larger seal retaining ring from the tri-pot joint with a side cutter and dispose.
  6.  
  7. Separate the seal from the trilobal tri-pot bushing at the large diameter, then slide the seal away from the joint along the axle shaft.
  8.  
  9. Remove the housing from the spider and shaft.
  10.  
  11. Spread the spacer ring with tool J-8059, then slide the spacer ring and spider back on the axle shaft.
  12.  



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Fig. Fig. 17: Full view of the spider on the axle shaft



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Fig. Fig. 18: Spread the spacer ring with tool J-8059, then slide the spacer ring and spider back on the axle shaft

  1. Remove the shaft retaining ring from the groove on the axle shaft and slide the spider assembly off the shaft.
  2.  
  3. Clean the tri-pot balls, needle rollers and housing with clean solvent.
  4.  
  5. Remove the trilobal tri-pot bushing from the housing.
  6.  
  7. Remove the spacer ring and seal from the axle shaft.
  8.  
  9. Inspect all parts for wear.
  10.  

To install:
  1. Connect the new ring on the neck of the seal. DO NOT SWAGE.
  2.  
  3. Slide the seal on the shaft, then position the neck of the seal in the groove on the axle shaft.
  4.  
  5. For the swag ring, mount the clamp tool in a vise, then proceed:
    1. Position the outboard end of the shaft assembly in the tool.
    2.  
    3. Align the top of the seal neck on the bottom die using the indicator line.
    4.  
    5. Place the top half of the tool on the lower half of the tool.
    6.  
    7. Make sure there are no pinch points on the seal before proceeding. This could cause damage to the seal.
    8.  
    9. Insert the bolts, then tighten by hand until snug.
    10.  
    11. Make sure that the seal, housing and swage ring all remain in alignment.
    12.  
    13. Continue to tighten each of the bolts 180° at a time, alternating until both of the sides are bottomed.
    14.  

  6.  
  7. Install the spacer ring on the axle shaft and beyond the second groove.
  8.  
  9. Slide the spider assembly against the spacer ring on the shaft.
  10.  
  11. Be sure that the counterbored face of the spider faces the end of the shaft.
  12.  
  13. Install the shaft seating ring in the groove of the axle shaft with tool J-8059.
  14.  
  15. Slide the spider towards the end of the shaft, then reseat the spacer ring in the groove on the shaft.
  16.  
  17. Place approximately half of the grease from the service kit in the seal and use the remaining grease to repack the housing.
  18.  
  19. Install the trilobal tri-pot bushing to the housing.
  20.  
  21. Position the large clamp on the seal, then slide the housing over the spider assembly on the shaft.
  22.  



Click image to see an enlarged view

Fig. Fig. 19: Position the large clamp on the seal, then slide the housing over the spider assembly on the shaft

  1. Slide the large diameter of the seal, with the large clamp in place, over the outside of the trilobal tri-pot bushing, then locate the lip of the seal in the groove.
  2.  
  3. Position the joint assembly at the correct distance, as illustrated.
  4.  



Click image to see an enlarged view

Fig. Fig. 20: Position the joint assembly 4.9 in. (125mm) from the inner boot band

  1. The seal must not be dimpled, stretched or out of shape in any way. If it is not in shape, equally pressurize the seal and shape it properly by hand.
  2.  
  3. Crimp the retaining ring clamp with tool J-35910 to 130 ft. lbs. (176 Nm).
  4.  



Click image to see an enlarged view

Fig. Fig. 21: Crimp the retaining ring clamp with tool J-35910 to 130 ft. lbs. (176 Nm)

  1. Check the crimp profile for correct shape and ear gap.
  2.  

Inner Boot
  1. Raise and safely support the vehicle.
  2.  
  3. Remove the front tire and wheel assembly.
  4.  
  5. Unsecure the caliper bolts, then remove the caliper and support it using a length of wire.
  6.  
  7. Remove the hub nut, washer and wheel bearing.
  8.  
  9. Remove the halfshaft. Place in a suitable holding fixture being careful not place undue pressure on the halfshaft.
  10.  
  11. Remove the joint assembly retaining ring. Remove the joint assembly.
  12.  
  13. Remove the race retaining ring and remove the seal retainer.
  14.  
  15. Remove the inner seal retaining clamp. Remove the inner joint seal.
  16.  
  17. Flush the grease from the joint and repack with half of the grease provided. Put the remainder of the grease in the seal.
  18.  

To install:
  1. Assemble the inner seal retainer, outboard seal and outer seal retainer to the halfshaft. Push the joint assembly onto the shaft until the retaining ring is seated in the groove.
  2.  
  3. Slide the outboard seal onto the joint assembly and secure using the outer seal retainer. Using seal clamp tool J-35910 or equivalent, tighten the outer clamp to 130 ft. lbs. (176 Nm) and the inner clamp to 100 ft. lbs. (136 Nm).
  4.  
  5. Insert the halfshaft assembly.
  6.  
  7. Secure the wheel bearing, washer and hub nut. Tighten the hub nut to 192 ft. lbs. (260 Nm).
  8.  
  9. Install the caliper and caliper attaching bolts.
  10.  
  11. Install the front tire and wheel assembly.
  12.  
  13. Lower the vehicle.
  14.  

 
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