Jeep CJ/Scrambler 1971-1986 Repair Guide

Axle Shaft

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REMOVAL & INSTALLATION



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

When using a puller to remove the hub assembly, be sure to secure the puller fully. The hubs are usually very difficult to remove as they are usually rusted into place. It is helpful to soak them with penetrating oil repeatedly before attempting to remove them.

Tapered Shaft
  1. Jack up the vehicle and remove the hub cap.
  2.  
  3. Remove the wheel.
  4.  
  5. Remove the axle nut dust cap.
  6.  
  7. Remove the axle shaft cotter pin, castle nut and flat washer.
  8.  
  9. Back off the brake adjustment.
  10.  
  11. Use a puller to remove the wheel hub.
  12.  
  13. Remove the screws attaching the brake dust protector, grease and bearing retainers, brake assembly and shim to the housing.
  14.  
  15. Remove the hydraulic line from the brake assembly.
  16.  
  17. Remove the dust shield and oil seal.
  18.  

If both shafts are being removed, keep the shims separated. Axle shaft endplay is adjusted at the left side only.

  1. Use a puller to remove the axle shaft.
  2.  
  3. Install the axle shaft in the reverse order of removal, using a new grease seal and installing the hub assembly before the woodruff key. Tighten the axle shaft nut to 150 ft. lbs. Some axles have and inner oil seal fitted in the axle shaft housing, inboard of the bearing; some do not. If your axle does not have one, don't install one when replacing the bearing! Axles with an inner seal rely on chassis lube for bearing lubrication and must be prelubed prior to installation. Axles without an inner seal rely on differential oil to lubricate the bearing.
  4.  

Should the axle shaft be broken, the inner end can usually be drawn out of the housing with a wire loop after the outer oil seal is removed. However, if the broken end is less than 8 in. (203mm) long, it usually is necessary to remove the differential assembly.

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Fig. Fig. 1: Pry up on the dust cap to loosen it from the hub



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Fig. Fig. 2: Remove the dust cap from the rear hub



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Fig. Fig. 3: Use a pair of pliers to remove the cotter pin from the axle nut



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Fig. Fig. 4: Remove the axle nut from the axle



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Fig. Fig. 5: Remove the tab washer from the axle shaft



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Fig. Fig. 6: Install a puller on the lug nut studs to remove the hub. This is not going to be easy, the hubs are very hard to remove



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Fig. Fig. 7: Pulling the axle shaft from the vehicle



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Fig. Fig. 8: Exploded view of the rear axle assembly

Flanged Shaft
  1. Jack up the vehicle and remove the wheels.
  2.  
  3. Remove the brake drum spring locknuts and remove the drum.
  4.  
  5. Remove the axle shaft flange cup plug by piercing the center with a sharp tool and prying it out.
  6.  
  7. Using the access hole in the axle shaft flange, remove the nuts which attach the backing plate and retainer to the axle tube flange.
  8.  
  9. Remove the axle shaft from the housing with an axle puller.
  10.  
  11. Install in reverse order of removal. Torque the bearing retainer bolts to 50 ft. lbs. in a criss-cross pattern
  12.  

Some axles have an inner oil seal fitted in the axle shaft housing, inboard of the bearing; some do not. If your axle does not have one, don't install one when replacing the bearing! Axles with an inner seal rely on chassis lube for bearing lubrication and must be prelubed prior to installation. Axles without an inner seal rely on differential oil to lubricate the bearing.

 
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