GM Full-Size Trucks 1980-1987 Repair Guide

Axle Shaft

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See Figures 1 and 2

Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the 9 1/2 inch ring gear axle



Click image to see an enlarged view

Fig. Fig. 2: Replacing the spindle thrust washer and spindle; the components are removed from the truck for clarity

REMOVAL & INSTALLATION



  1. Follow the steps of the Front Hub section above.
  2.  
  3. Pull out the axle shaft and universal joint assembly.
  4.  
  5. When installing the axle shaft, turn the shaft slowly to align the splines with the differential.
  6.  
  7. Reassemble everything and adjust the wheel bearings following the steps in the Front Hub section in this Section.
  8.  

AXLE SHAFT U-JOINT OVERHAUL



  1. Remove the axle shaft.
  2.  
  3. Squeeze the ends of the trunnion bearings in a vise to relieve the load on the snaprings. Remove the snaprings.
  4.  
  5. Support the yoke in a vise and drive on one end of the trunnion bearing with a brass drift enough to drive the opposite bearing from the yoke.
  6.  
  7. Support the other side of the yoke and drive the other bearing out.
  8.  
  9. Remove the trunnion.
  10.  
  11. Clean and check all parts. You can buy U-joint repair kits to replace all the worn parts.
  12.  
  13. Lubricate the bearings with wheel bearing grease.
  14.  
  15. Replace the trunnion and press the bearings into the yoke and over the trunnion hubs far enough to install the lock rings.
  16.  
  17. Hold the trunnion in one hand and tap the yoke lightly to seat the bearings against the lock rings.
  18.  
  19. The axle slingers can be pressed off the shaft.
  20.  

Always replace the slingers if the spindle seals are replaced.

  1. Replace the shaft.
  2.  

 
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