Chrysler Full-Size Trucks 1967-1988 Repair Guide

Spindle Bearings

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REMOVAL, PACKING, AND INSTALLATION



Before handling the bearings, there are a few things that you should remember to do and not to do.

Remember to DO the following:


Remove all outside dirt from the housing before exposing the bearing.
 
Treat a used bearing as gently as you would a new one.
 
Work with clean tools in clean surroundings.
 
Use clean, dry canvas gloves, or at least clean, dry hands.
 
Clean solvents and flushing fluids are a must.
 
Use clean paper when laying out the bearings to dry.
 
Protect disassembled bearings from rust and dirt. Cover them up.
 
Use clean rags to wipe bearings.
 
Keep the bearings in oil-proof paper when they are to be stored or are not in use.
 
Clean the inside of the housing before replacing the bearing.
 

Do NOT do the following:


Don't work in dirty surroundings.
 
Don't use dirty, chipped or damaged tools.
 
Try not to work on wooden work benches or use wooden mallets.
 
Don't handle bearings with dirty or moist hands.
 
Do not use gasoline for cleaning; use a safe solvent.
 
Do not spin-dry bearings with compressed air. They will be damaged.
 
Do not spin dirty bearings.
 
Avoid using cotton waste or dirty cloths to wipe bearings.
 
Try not to scratch or nick bearing surfaces.
 
Do not allow the bearing to come in contact with dirt or rust at any time.
 

Dana 44 and 60 With Locking Hubs

See Figure 1

  1. Raise the vehicle and install safety stands.
  2.  
  3. Refer to Manual or Automatic Free Running Hub Removal and Installation and remove the hub assemblies.
  4.  
  5. Remove the wheel bearing locknut, using a hub nut wrench.
  6.  
  7. Remove the lockring from the bearing adjusting nut. This can be done with your finger tips or a screwdriver.
  8.  
  9. Using a hub nut wrench remove the bearing adjusting nut.
  10.  
  11. Remove the caliper and suspend it out of the way. Please refer to Brakes of this repair guide.
  12.  
  13. Slide the hub and disc assembly off of the spindle. The outer wheel bearing will slide out as the hub is removed, so be prepared to catch it.
  14.  
  15. Lay the hub on a clean work surface. Carefully drive the inner bearing cone and grease seal out of the hub using a bearing driver.
  16.  
  17. Inspect the bearing cups for pits or cracks. If necessary, remove them with a drift. If new cups are installed, install new bearings.
  18.  
  19. Lubricate the bearings with wheel bearing grease. Clean all old grease from the hub. Pack the cones and rollers. If a bearing packer is not available, work as much lubricant as possible between the rollers and the cages.
  20.  
  21. Drive new cups into place with a driver, making sure that they are fully seated.
  22.  
  23. Position the inner bearing cone and roller in the inner cup and install the grease retainer.
  24.  
  25. Carefully position the hub and disc assembly on the spindle.
  26.  
  27. Install the outer bearing cone and roller, and the adjusting nut.
  28.  

The adjusting nut has a small dowel on one side. This dowel faces outward to engage the locking ring.

  1. Using a hub nut wrench tighten the bearing adjusting nut to 50 ft. lbs. (67 Nm), while rotating the wheel back and forth to seat the bearings.
  2.  
  3. Back off the adjusting nut approximately 90°.
  4.  
  5. Install the lockring by turning the nut to the nearest hole and inserting the dowel pin.
  6.  

The dowel pin must seat in a lockring hole for proper bearing adjustment and wheel retention.

  1. Install the outer locknut and tighten to 50-80 ft. lbs. (67-108 Nm). Final end-play of the wheel on the spindle should be 0.001-0.010 in. (0.025-0.250mm).
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Removing the outer locknut on Dana 60 or 70 front drive axle

  1. Assemble the hub parts.
  2.  
  3. Install the caliper.
  4.  
  5. Remove the safety stands and lower the vehicle.
  6.  

Early Dana 44 Without Locking Hubs

See Figure 2

  1. Raise and support the front end on jackstands.
  2.  
  3. Remove the grease cap.
  4.  
  5. Remove the drive flange bolts and snapring.
  6.  
  7. Using a puller, remove the drive flange.
  8.  
  9. Unbend the locktab and remove the outer locknut.
  10.  
  11. Remove the lockring and the bearing inner adjusting nut.
  12.  
  13. Remove the hub and drum assembly. Take care not to drop the outer bearing.
  14.  
  15. Lay the hub on a clean work surface. Carefully drive the inner bearing cone and grease seal out of the hub using a bearing driver.
  16.  
  17. Inspect the bearing cups for pits or cracks. If necessary, remove them with a drift. If new cups are installed, install new bearings.
  18.  
  19. Lubricate the bearings with wheel bearing grease. Clean all old grease from the hub. Pack the cones and rollers. If a bearing packer is not available, work as much lubricant as possible between the rollers and the cages.
  20.  
  21. Drive new cups into place with a driver, making sure that they are fully seated.
  22.  
  23. Position the inner bearing cone and roller in the inner cup and install the grease retainer.
  24.  
  25. Carefully position the hub and drum assembly on the spindle.
  26.  
  27. Install the outer bearing cone and roller, and the adjusting nut.
  28.  

The adjusting nut has a small dowel on one side. This dowel faces outward to engage the locking ring.

  1. Using a hub nut wrench tighten the bearing adjusting nut to 50 ft. lbs. (67 Nm), while rotating the wheel back and forth to seat the bearings.
  2.  
  3. Back off the adjusting nut approximately 90°.
  4.  
  5. Install the lockring by turning the nut to the nearest hole and inserting the dowel pin.
  6.  

The dowel pin must seat in a lockring hole for proper bearing adjustment and wheel retention.

  1. Install the outer locknut and tighten to 50-80 ft. lbs. (67-108 Nm). Final end-play of the wheel on the spindle should be 0.001-0.010 in. (0.025-0.250mm). Bend the locking tab over the nut.
  2.  
  3. Install the drive flange bolts and snapring.
  4.  
  5. Install the grease cap.
  6.  
  7. Remove the safety stands and lower the vehicle.
  8.  



Click image to see an enlarged view

Fig. Fig. 2: Full floating axle, single rear hub assembly-locknut type

Dana F-375, Dana 70 Without Locking Hubs
  1. Raise and support the front end on jackstands.
  2.  
  3. Remove the wheels.
  4.  
  5. Remove the brake drums. See Brakes .
  6.  
  7. Matchmark the drive flange and the hub.
  8.  
  9. Remove the nuts and lcokwashers and install puller screws using the 2 threaded holes in the flange.
  10.  
  11. Pull the flange from the hub.
  12.  
  13. Remove the hub and bearings.
  14.  
  15. Thoroughly clean and inspect all parts.
  16.  
  17. Pack the wheel bearings and coat the inside of the hubs with wheel bearing grease.
  18.  
  19. Adjust the wheel bearings by turning the inner adjusting nut tightly, then backing it off 1 / 6 in. turn.
  20.  
  21. Install the lockring making sure that the pin on the inner nut enters one of the holes in the lockring. It's okay to move the inner nut slightly to position the pin.
  22.  
  23. Install the outer nut and torque it to 50 ft. lbs. (67 Nm).
  24.  
  25. Install the drive flange, using a new gasket.
  26.  
  27. Coat the flange and drum contact surfaces with anti-sieze compound and install the drum.
  28.  
  29. Install the wheel.
  30.  

Full-Time 4-Wheel Drive

See Figures 3 through 12

  1. Remove the wheel cover.
  2.  
  3. Remove the cotter pin and loosen the axle shaft nut.
  4.  
  5. Raise and support the front end on jackstands.
  6.  
  7. Remove the wheels.
  8.  
  9. Unbolt the caliper and support it out of the way. DO NOT DISCONNECT THE BRAKE LINE.
  10.  
  11. Remove the inboard brake pad.
  12.  
  13. Remove the axle shaft nut and washer.
  14.  



Click image to see an enlarged view

Fig. Fig. 3: Removing the axle shaft nut

  1. Some models have a hole provided through the rotor to remove the 6 retainer bolts. See your model for this type. If not proceed to step 9, if so remove the bolts first.
  2.  
  3. Position puller C-4358, or equivalent, over the wheel lugs and install the lug nuts. Tighten the main screw of the puller to remove the hub, bearings, retainer and outer seal as an assembly.
  4.  



Click image to see an enlarged view

Fig. Fig. 4: Bolt the special puller to the rotor to remove the hub and bearing assembly.



Click image to see an enlarged view

Fig. Fig. 5: Removing the axle hub assembly

  1. Spray lubricant on the retainer bolts to loosen them for easy removal. Apply a rag over the axle shaft making sure not dirt enters the area.
  2.  



Click image to see an enlarged view

Fig. Fig. 6: Lubricate all bolts for ease of removal



Click image to see an enlarged view

Fig. Fig. 7: Apply a rag over the axle shaft making sure no dirt enters the area.

  1. Remove the bolts on the retainer bolts
  2.  



Click image to see an enlarged view

Fig. Fig. 8: Remove the retainer taking care not to disturb the rag

  1. Make sure you scrape any traces of gasket and dirt from the retainer and mating area, clean well.
  2.  



Click image to see an enlarged view

Fig. Fig. 9: Scrap areas well of old gasket materials

  1. Insert a prybar though the U-joint and wedge the shaft inward as far as it will go. Make sure that it is wedged securely and can't be moved.
  2.  



Click image to see an enlarged view

Fig. Fig. 10: Insert a prybar though the U-joint and wedge the shaft inward as far as it will go. Make sure that it is wedged securely and can't be moved

  1. Remove the bearing spacer and retainer along with the bearing. Clean the retainer and spacer well and regrease them with fresh grease.
  2.  



Click image to see an enlarged view

Fig. Fig. 11: Remove the retainer and spacer



Click image to see an enlarged view

Fig. Fig. 12: Removing and inspecting the bearing

To install:
  1. Take the bearing out and replace with a new one making sure you pack it with fresh grease. Scoop the bearing in the palm of your hand with the grease, making sure you have packed it well. All bearing specs must be filled with grease.
  2.  
  3. Install the hub, rotor and bearing assembly and torque the retainer bolts to 30 ft. lbs. (41 Nm) in a crisscross pattern.
  4.  
  5. Install the brake adapter. Torque the bolts to 85 ft. lbs. (115 Nm).
  6.  
  7. Remove the prybar from the U-joint.
  8.  
  9. Install the axle shaft nut and tighten it to 100 ft. lbs. (135 Nm), then continue tightening it to align the cotter pin holes. Install the cotter pin.
  10.  
  11. Using the lube fitting, fill the knuckle with NLGI, Grade 2, multi-purpose EP grease until the grease is seen flowing through the inner seal.
  12.  
  13. Install the inner brake pad and caliper. See Brakes .
  14.  
  15. Install the wheels and tighten the lug nuts to 110 ft. lbs. (135 Nm).
  16.  

 
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