GM Metro/Sprint 1985-1993 Repair Guide

Rear Wheel Bearings

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Rear wheel bearings should be repacked with a high quality axle bearing grease every time the rear brake drum is removed.

REMOVAL, PACKING AND INSTALLATION



See Figures 1 through 5



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Fig. Fig. 1: Rear brake drum/hub and bearing assembly.



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Fig. Fig. 2: Removing the inner wheel bearing from the rear brake drum/hub.



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Fig. Fig. 3: Removing the outer wheel bearing from the rear brake drum/hub.

  1. Raise and support the vehicle safely.
  2.  
  3. Remove the rear wheel and tire assembly.
  4.  
  5. Using a prybar, remove the spindle nut dust cap.
  6.  
  7. Unstake and remove the spindle nut and washer.
  8.  
  9. Tap on the brake drum/hub assembly gently with a hammer to break it loose.
  10.  
  11. Remove the brake drum/hub assembly from the spindle.
  12.  
  13. Place the brake drum/hub assembly on wood blocks on a clean workbench.
  14.  



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Fig. Fig. 4: Installing the outer wheel bearing on the rear brake drum/hub.



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Fig. Fig. 5: Installing the inner wheel bearing on the rear brake drum/hub.

  1. Drive the inner bearing out from the outboard side of the brake drum/hub assembly using a hammer and punch. The bearing spacer can be moved from side to side to facilitate placement of the punch working around the perimeter of the inner bearing by moving this spacer.
  2.  
  3. Remove the bearing spacer.
  4.  
  5. Drive the outer bearing out from the inboard side of the brake drum/hub assembly using a hammer and punch working around the perimeter of the bearing.
  6.  

To install:
  1. Check both bearings for signs of wear, corrosion and contamination by dirt or water. If any of these conditions exist, replace the bearings.
  2.  
  3. Liberally grease the bearings with a high quality axle bearing grease.
  4.  
  5. Install the outer bearing to the outboard side of the brake drum/hub assembly using Rear Wheel Bearing Installer J34842, or equivalent. Use the proper side of the tool for the bearing diameter.
  6.  

The outer and inner bearing cartridges differ in size. The outer cartridge is smaller in diameter than the inner one.

  1. Install the bearing spacer to the brake drum/hub with the inner lip toward the outer bearing. The assembly will not fit on the knuckle spindle if the spacer lip is toward the inner bearing.
  2.  
  3. Install the outer bearing to the outboard side of the brake drum/hub assembly using Rear Wheel Bearing Installer J34842, or equivalent. Use the proper side of the tool for the bearing diameter.
  4.  
  5. Install the brake drum on the knuckle spindle.
  6.  
  7. Install the washer and spindle nut. Tighten the spindle nut to 129 ft. lbs. (175 Nm).
  8.  
  9. Stake the spindle nut in place with a blunt punch.
  10.  
  11. Install the spindle nut cap and rear wheel and tire assembly. Lower the vehicle.
  12.  

 
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