GM Blazer/Jimmy/Typhoon/Bravada 1983-1993 Repair Guide

Halfshafts (Drive Axle)

Print

REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4, 5, 6, 7, 8 and 9

Except Bravada and Typhoon
VEHICLES THROUGH 1181

Unless air tools are available, you must remove the cotter pin and loosen the axle nut before the vehicle is raised and supported. With the vehicle's weight resting on the tire and an assistant firmly applying the brake pedal, you should be able to loosen or tighten the axle nut, as necessary.

  1. Disconnect the negative battery cable.
  2.  
  3. Unlock the steering column so the linkage is free to move, then raise and support the front of the vehicle safely using jackstands.
  4.  
  5. Remove the tire and wheel assembly.
  6.  
  7. Remove the brake caliper from the bracket and support out of the way using safety wire. Be careful not to stretch, kink or otherwise damage the brake line.
  8.  
  9. Disengage the tie rod at the steering knuckle. For details, please refer to Suspension & Steering of this repair guide.
  10.  
  11. Remove the lower shock absorber retainer, then push the shock out of the way. If necessary, compress the shock and secure it using safety wire.
  12.  
  13. Matchmark the inner shaft flange, then loosen and remove the retaining bolts. If necessary, hold the axle from turning by installing 2 of the lug nuts and using a prybar across the nuts on the hub.
  14.  
  15. Remove the cotter pin and retainer from the hub end of the shaft. Hold the hub from turning and loosen the axle nut. Once the nut is loosened, unthread it and remove the washer.
  16.  
  17. Move the inside of the drive axle forward and support it away from the frame.
  18.  
  19. Using a suitable axle remover such as J-28733 or equivalent, drive the axle shaft from the hub.
  20.  
  21. Remove the axle from the vehicle. If the boots are not being serviced, take care not to damage or rip the CV-boots during removal.
  22.  

To install:
  1. Install the axle to the vehicle taking care not to damage the CV-boots. Insert the shaft end into the hub.
  2.  
  3. Install the washer and retaining nut, then tighten the nut to 160-200 ft. lbs. (220-270 Nm).
  4.  
  5. Install the retainer and a new cotter pin over the axle nut. DO NOT back off or exceed specification in order to insert the cotter pin.
  6.  
  7. Align the hub flange, then install the retaining bolts and tighten to 60 ft. lbs. (80 Nm).
  8.  
  9. Reposition the shock absorber and secure using the retaining bolt.
  10.  
  11. Install the tie rod end to the steering knuckle and secure.
  12.  
  13. Remove the support, then install the brake caliper.
  14.  
  15. Install the tire and wheel assembly.
  16.  
  17. Remove the jackstands and carefully lower the vehicle.
  18.  
  19. Make sure the ignition is OFF , then connect the negative battery cable.
  20.  



Click image to see an enlarged view

Fig. Fig. 1: Exploded view of common front drive axle mounting



Click image to see an enlarged view

Fig. Fig. 2: A torn CV-boot requires removal of the driveshaft for overhaul



Click image to see an enlarged view

Fig. Fig. 3: On most vehicles, the caliper should be removed and supported out of the way



Click image to see an enlarged view

Fig. Fig. 4: Also on most vehicles, the tie rod end should be separated from the steering knuckle



Click image to see an enlarged view

Fig. Fig. 5: Once the lower fastener is removed, the shock absorber may be compressed and wired out of the way



Click image to see an enlarged view

Fig. Fig. 6: Loosen and remove the flange bolts



Click image to see an enlarged view

Fig. Fig. 7: Remove the cotter pin and retainer so the axle nut may be loosened, but if air tools aren't available, you should probably do this before the vehicle is raised



Click image to see an enlarged view

Fig. Fig. 8: Use a suitable axle shaft removal tool to drive the shaft from the hub



Click image to see an enlarged view

Fig. Fig. 9: If a driver tool is not available, thread the nut just flush with the shaft end and tap gently with a rubber or brass mallet

1182-93 VEHICLES

See Figure 10

  1. Disconnect the negative battery cable.
  2.  
  3. Unlock the steering column so the linkage is free to move, then raise and support the front of the vehicle safely using jackstands.
  4.  
  5. If equipped, remove the front skid plate for access
  6.  
  7. Remove the tire and wheel assembly.
  8.  
  9. Insert a large drift through the brake caliper into one of the brake rotor vanes to prevent the drive axle from turning.
  10.  
  11. Remove the cotter pin and retainer from the hub end of the shaft. Hold the hub from turning and loosen the axle nut. Once the nut is loosened unthread it and remove the washer.
  12.  
  13. Matchmark the inner shaft flange, then loosen (but DO NOT remove) the bolts retaining the inner joint flange to the output shaft companion flange.
  14.  
  15. Remove the brake line support bracket from the upper control arm in order to allow for additional knuckle travel. If necessary, remove the brake caliper and support aside.
  16.  
  17. Remove the cotter pin and nut from the outer tie rod end, then disengage the tie rod at the steering knuckle using J-24319-B, or an equivalent jawed tie rod puller. Push the linkage out toward the opposite side of the vehicle, then support the outer tie rod out of the way to provide the necessary clearance for shaft removal.
  18.  
  19. Remove the lower shock absorber retainers, then compress the shock and secure it out of the way using safety wire.
  20.  
  21. Position a jackstand between the spring seat and lower control arm ball joint for maximum leverage, then use the vehicle's weight to relieve the spring tension on the upper control arm.
  22.  
  23. Remove the cotter pin and retainer, then loosen and remove the upper ball joint stud nut away from the knuckle. Tip the knuckle out and toward the rear of the vehicle. Suspend the knuckle from the upper control arm or frame in order to prevent straining and damaging the brake line.
  24.  
  25. Using a suitable axle remover such as J-28733-B or equivalent, drive the axle shaft from the hub.
  26.  
  27. Remove the inboard flange bolts which were removed earlier.
  28.  



Click image to see an enlarged view

Fig. Fig. 10: Once the upper ball joint is disconnected, support the knuckle from the upper control arm or frame to prevent damage to the brake line and/or lower ball joint

  1. Remove the axle from the vehicle. If the boots are not being serviced, take care not to damage or rip the CV-boots during removal.
  2.  


WARNING
DO NOT allow the vehicle's weight to load the front wheels or attempt to operate the vehicle when the drive axle(s) or hub nut(s) are removed. To do so may cause the front wheel bearing inner races to separate resulting in damage to the front brake and suspension components and/or personal injury.

To install:
  1. Prior to shaft installation, cover the shock mounting bracket, lower control arm ball stud and ALL other sharp edges with a cloth or rag to help protect the boot.
  2.  
  3. Install the axle to the vehicle taking care not to damage the CV-boots. Insert the shaft end into the hub making sure to properly align the shaft splines.
  4.  
  5. Install the washer and retaining nut, if the nut can be fully threaded, it may be used to help draw the shaft into position in the hub.
  6.  
  7. Align the inboard flange to the output shaft companion flange, then loosely install the retainers.
  8.  

Neither the flange retainers nor the axle end nut should be fully tightened at this time. Thread the retainers to hold the axle shaft in position and reassemble the other components.

  1. Install the upper ball joint to the steering knuckle, then install the nut and tighten to 61 ft. lbs. (83 Nm). Install a new cotter pin, but DO NOT back off the specified torque. Lube the ball joint until grease appears at the seals, then remove the support from underneath the lower control arm.
  2.  
  3. Reposition and secure the lower shock absorber fasteners. Tighten the nut and bolt to 47 ft. lbs. (64 Nm).
  4.  
  5. Install the tie rod end to the steering knuckle, then tighten the nut to 35 ft. lbs. (47 Nm). Align the cotter pin hole by rotating the retainer, DO NOT back off the specified torque OR exceed specification in order to install the cotter pin. Install the new cotter pin once the retainer is aligned.
  6.  
  7. Install the brake line support bracket and tighten the retainer(s) to 13 ft. lbs. (17 Nm). Make sure the brake hose is not twisted, kinked or otherwise damaged before securing the bracket.
  8.  
  9. Insert a drift through the brake caliper to prevent the drive axle from turning, then tighten the inboard flange bolts to 60 ft. lbs. (80 Nm).
  10.  
  11. Tighten the hub nut on the end of the axle to 180 ft. lbs. (245 Nm), then install the retainer and a new cotter pin. Rotate the retainer, as necessary to install the cotter pin. DO NOT back off or exceed specification to install the cotter pin.
  12.  
  13. If removed, reposition and secure the caliper.
  14.  
  15. Install the tire and wheel assembly.
  16.  
  17. If applicable, install the skid plate.
  18.  
  19. Remove the jackstands and carefully lower the vehicle.
  20.  
  21. Make sure the ignition is OFF , then connect the negative battery cable.
  22.  

Bravada and Typhoon

Unless air tools are available, you must remove the cotter pin and loosen the axle nut before the vehicle is raised and supported. With the vehicle's weight resting on the tire and an assistant firmly applying the brake pedal, you should be able to loosen or tighten the axle nut, as necessary.

  1. Disconnect the negative battery cable.
  2.  
  3. Unlock the steering column so the linkage is free to move, then raise and support the front of the vehicle safely using jackstands.
  4.  
  5. Remove the tire and wheel assembly.
  6.  
  7. Remove the cotter pin and retainer from the hub end of the axle shaft.
  8.  
  9. Hold the hub from turning and loosen the axle nut. Once the nut is loosened unthread it and remove the washer. The hub may be held by installing two lug nuts and using a large prybar.
  10.  
  11. Place a jackstand or a floor jack under the lower control arm for support.
  12.  
  13. Remove the lower shock absorber retainers, then reposition the shock for access.
  14.  
  15. Matchmark the output shaft flange, then remove the output shaft flange-to-drive axle bolts. If necessary, hold the hub from turning using the prybar or insert a drift through the opening in the top of the brake caliper into the vanes of the rotor.
  16.  
  17. Using an axle driver/removal tool such as the Posilock Puller Model 110, or equivalent, drive the axle shaft from the hub.
  18.  
  19. Remove the drive axle from the vehicle. If the boots are not being serviced, take care not to damage or rip the CV-boots during removal.
  20.  

To install:
  1. Install the axle to the vehicle, taking care not to damage the CV-boots. Insert the shaft end into the hub.
  2.  
  3. Install the washer and retaining nut, then tighten the nut to 180 ft. lbs. (245 Nm).
  4.  
  5. Install the retainer and a new cotter pin over the axle nut. If necessary, tighten the nut additionally in order to insert the cotter pin, but DO NOT back off from specification.
  6.  
  7. Align the hub flange, then install the retaining bolts and tighten to 59 ft. lbs. (80 Nm).
  8.  
  9. Reposition the shock absorber and secure using the retaining bolt.
  10.  
  11. Install the tire and wheel assembly.
  12.  
  13. Remove the jackstands and carefully lower the vehicle.
  14.  
  15. Make sure the ignition is OFF , then connect the negative battery cable.
  16.  

CV-JOINT OVERHAUL



Outer CV-Joint

See Figures 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and 21

  1. Remove the drive axle from the vehicle.
  2.  
  3. Place the axle in a vise using a protective covering on the vise jaws to prevent axle damage.
  4.  


CAUTION
Because the retaining clamps are under tension, use care when cutting and removing them. Wear gloves and safety goggles to protect you should the clamp spring loose upon releasing the tension.

  1. Cut and remove the CV-boot retaining clamps. If the boot is not being replaced, use care not to cut or damage the boot.
  2.  

Some late-model vehicles are equipped with a swage ring. In order to remove the ring, use a hand grinder to cut through the ring. Take care not to damage the outer race while cutting the swage ring free.

  1. Once the clamps are removed, reposition the boot and wipe the grease away in order to locate the snapring.
  2.  



Click image to see an enlarged view

Fig. Fig. 11: Exploded view of the drive axle and CV-joints

  1. Remove the snapring using a suitable pair of snapring pliers, such as J-8059 or equivalent.
  2.  
  3. Remove the joint assembly from the axle shaft.
  4.  
  5. Using a brass drift and hammer, tap the cage until it tilts sufficiently to remove the first ball, then remove the remaining balls in the same manner.
  6.  
  7. Pivot the cage so the inner race is 90 degrees to the centerline of the outer race, then align the cage windows with the outer race lands and lift the cage (along with the inner race) from the outer race. Please refer to the illustration for clarification.
  8.  
  9. Rotate the inner race up and out of the cage.
  10.  



Click image to see an enlarged view

Fig. Fig. 12: Aligning the cage windows with the outer race lands so the cage (and inner race) may be removed



Click image to see an enlarged view

Fig. Fig. 13: Rotating the inner race up and out of the cage

  1. Thoroughly clean all parts in an approved solvent, then check for wear or damage and replace, as necessary.
  2.  

To install:
  1. Apply a suitable grease to the ball grooves of the inner and outer races.
  2.  
  3. Install the inner race to the cage by inserting and rotating.
  4.  
  5. Align the cage windows with the outer race lands, then install the cage (along with the inner race) to the outer race. Make sure the retaining ring side of the inner race faces outward.
  6.  
  7. Use the brass drift to tap the cage to a tilted position, then install the balls.
  8.  
  9. Pack the joint using a suitable grease.
  10.  
  11. Position the small boot clamp onto the outboard boot, then install the boot to the axle shaft. Tighten the small clamp securely using a suitable clamp tool such as J-35910 or equivalent. If the tool has a torque wrench fitting, secure the clamp using 19 ft. lbs. (136 Nm) of torque.
  12.  
  13. Check the clamp ear gap dimension (distance that the inner bends of the crimp should be from each other), it should be a maximum of 0.085 in. (2.15mm). Please refer to the illustration for clarification.
  14.  
  15. Install the joint assembly to the shaft and secure using the snapring. Pack the boot and outer joint assembly with the premeasured amount of grease supplied with the service kit, then snap the boot onto the outer joint assembly and manipulate it to remove excess air.
  16.  
  17. Install the large retaining clamp using the clamp tool and torque wrench. Secure the clamp using 130 ft. lbs. (176 Nm) of torque. Again, check the clamp ear dimension, it should be a maximum of 0.21 in. (2.60mm)
  18.  
  19. Install the drive axle to the vehicle.
  20.  



Click image to see an enlarged view

Fig. Fig. 14: Small retaining clamp installation and ear dimension



Click image to see an enlarged view

Fig. Fig. 15: Large retaining clamp installation and ear dimension - outer joint shown (inner joint uses same dimension)



Click image to see an enlarged view

Fig. Fig. 16: Before removal check the CV-boot for wear or damage



Click image to see an enlarged view

Fig. Fig. 17: In most cases, use a pair of side cutters to release clamp tension - inner band shown



Click image to see an enlarged view

Fig. Fig. 18: Remove the outer band from the CV-boot once the clamp tension has been released



Click image to see an enlarged view

Fig. Fig. 19: Clean the CV-joint housing prior to removing the boot, but be careful not to damage anything



Click image to see an enlarged view

Fig. Fig. 20: With the clamps removed, carefully pull the CV-boot from the joint housing



Click image to see an enlarged view

Fig. Fig. 21: Pull the housing from the spider and shaft assembly - inner joint shown

Inner CV-Joint

See Figures 22, 23, 24, 25, 26, 27, 28 and 29

  1. Remove the drive axle from the vehicle.
  2.  
  3. Place the axle in a vise using a protective covering on the vise jaws to prevent axle damage.
  4.  


CAUTION
Because the retaining clamps are under tension, use care when cutting and removing them. Wear gloves and safety goggles to protect you should the clamp spring loose upon releasing the tension.

  1. Cut and remove the CV-boot retaining clamps. If the boot is not being replaced, use care not to cut or damage the boot.
  2.  

Some late-model vehicles are equipped with a swage ring. In order to remove the ring, use a hand grinder to cut through the ring. Take care not to damage the outer race while cutting the swage ring free.

  1. Remove the axle shaft with spider assembly from the housing.
  2.  

Handle the spider assembly with care. The Tri-pot needle rollers may separate from the spider trunnions.



Click image to see an enlarged view

Fig. Fig. 22: Snapring and spider removal

  1. Grasp the space ring using J-8059, or an equivalent pair of snapring pliers, then slide the ring back on the axle shaft in order to provide clearance to move the spider assembly.
  2.  
  3. Move the spider assembly back on the shaft in order to expose the retaining snapring.
  4.  
  5. Remove the snapring using a suitable pair of snapring pliers, such as J-8059 or equivalent.
  6.  
  7. Remove the spider assembly.
  8.  
  9. Thoroughly clean all grease from the housing. Check for rust at the boot mounting grooves, if found remove with a wire brush.
  10.  

To install:
  1. Install the small boot clamp and inboard boot to the axle shaft.
  2.  
  3. If the spacer ring was removed, make sure it is positioned up on the shaft leaving room for spider and snapring installation.
  4.  
  5. Install the spider assembly to the axle shaft, making sure the snapring counterbore faces the housing end of the axle.
  6.  
  7. Install the snapring to the shaft, then properly position the spider and space ring.
  8.  



Click image to see an enlarged view

Fig. Fig. 23: Proper inboard boot and housing positioning

  1. Position the small boot clamp and tighten securely using a suitable clamp tool, such as J-35910 or equivalent. If the tool has a torque wrench fitting, secure the clamp using 19 ft. lbs. (136 Nm) of torque.
  2.  
  3. Check the clamp ear gap dimension (distance that the inner bends of the crimp should be from each other), it should be a maximum of 0.085 in. (2.15mm). Please refer to the illustration for clarification.
  4.  



Click image to see an enlarged view

Fig. Fig. 24: On the inner CV-joint, be careful not to loose the spider assembly components



Click image to see an enlarged view

Fig. Fig. 25: Remove the CV-joint housing and check for wear or damage



Click image to see an enlarged view

Fig. Fig. 26: With the spacer and spider pushed back, grasp the snapring using a pair of snapring pliers



Click image to see an enlarged view

Fig. Fig. 27: Remove the snapring from the shaft so the spider assembly may be removed



Click image to see an enlarged view

Fig. Fig. 28: With the snapring removed, the spider is free to be pulled from the shaft



Click image to see an enlarged view

Fig. Fig. 29: If necessary, remove the spacer ring from the shaft

  1. Repack the housing using about half of the premeasured grease supplied with the service kit, then place the remaining grease in the boot. Coat the inside of the boot sealing lips with grease.
  2.  
  3. Make sure the joint/boot are assembled to the proper dimension of 6 1 / 4 in. (160mm) between the clamps. Please refer to the illustration for clarification.
  4.  
  5. Install the large retaining clamp using the clamp tool and torque wrench. Secure the clamp using 130 ft. lbs. (176 Nm) of torque. Again, check the clamp ear dimension, it should be a maximum of 0.21 in. (2.60mm).
  6.  
  7. Install the drive axle to the vehicle.
  8.  

 
label.common.footer.alt.autozoneLogo