GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

Leaf Spring

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REMOVAL & INSTALLATION



AWD Vehicles

The 6000 STE AWD vehicle has rear leaf spring suspension rather than the common coil spring.

  1. Loosen the lug nuts from the rear wheels.
  2.  
  3. Raise the vehicle with a suitable hoist. Remove the tire and wheel assembly.
  4.  
  5. Remove the 4 bolts from the jacking plate, then remove the jacking plate.
  6.  
  7. Install the spring compression tool J-33432. Unfasten the 1 bolt securing the brake line at the electronic ride control (ERC) sensor bracket to the left hand control arm, then move the bracket out of the way.
  8.  
  9. Remove both of the control arm outer nuts and bolts at the knuckles.
  10.  

It is not necessary to completely remove the control arms to permit removal of the leaf spring.

  1. Disconnect and remove the outer stabilizer bar brackets, then loosen the spring compression tool J-33432 to allow the control arm to drop, then remove the tool.
  2.  
  3. Unsecure the 4 bolts (2 on each side) from the left and right spring-to-cradle brackets, then remove the brackets.
  4.  
  5. Remove the leaf spring by sliding it outwards.
  6.  

To install:
  1. Position the leaf spring to the cradle assembly. Make sure that the spring is properly seated in the control arms.
  2.  
  3. Insert the 2 leaf spring-to-cradle brackets, use the 4 bolts and tighten them to 61 ft. lbs. (83 Nm).
  4.  
  5. Attach the spring compression tool J-33432 on the spring and tighten to draw the outer control arm bolt bores up to the knuckle bores.
  6.  
  7. Install the outer stabilizer bar brackets. Fasten the bolts and nuts to the outer control arms and tighten the nuts to 125 ft. lbs. (170 Nm).
  8.  
  9. Reinstall the 1 bolt on the left control arm which secures the brake line/ERC sensor bracket, then tighten to 18 ft. lbs. (24 Nm).
  10.  
  11. Remove the spring compressor tool.
  12.  
  13. Install the tire and wheel, then hand-tighten the lug nuts.
  14.  
  15. Lower the vehicle, then tighten the lug nuts to 100 ft. lbs. (136 Nm).
  16.  

 
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