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    GM Full-Size Trucks 1988-1998 Repair Information

    Lower Control Arm Pivot Shaft and Bushings-R-Series

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    REMOVAL & INSTALLATION



    10/1500 Series

    See Figures 1 and 2

    The following special tools, or their equivalents, are necessary for this procedure: J-22717, J-24435-7, J-24435-3, J-24435-2, J-24435-6, J-24435-4.

    1. Remove the lower control arm as explained earlier in this Section.
    2.  



    Click image to see an enlarged view

    Fig. Fig. 1: Removing the lower control arm bushing (10/1500)-R-Series



    Click image to see an enlarged view

    Fig. Fig. 2: Centering the lower control arm shaft (20/2500, 30/3500)-R-Series

    1. Remove the pivot shaft nuts and washers.
    2.  
    3. Place the control arm in a press and press on the front end of the pivot shaft to remove the rear bushing.
    4.  
    5. Remove the pivot shaft.
    6.  
    7. Remove the front bushing stakes with tool J-22717, or equivalent.
    8.  
    9. Assemble tool J-24435-7. J-24435-3, J-24435-2 and J-24435-6 on the control arm. Tighten the tool until the bushing is forced out.
    10.  

    To install:
    1. Position the new front bushing in the arm and assemble tools J-24435-6, J-24435-4 and J-24435-7. Force the bushing into place until it is fully seated. The outer tube hole must be lined up so that it faces the front, towards the staked bushing.
    2.  
    3. Stake the bushing in at least 2 places.
    4.  
    5. Install the pivot shaft.
    6.  
    7. Install the rear bushing.
    8.  
    9. Install the washers and pivot shaft nuts. Tighten the nuts to 70 ft. lbs. (94 Nm).
    10.  
    11. Install the lower control arm.
    12.  

    20/2500 and 30/3500 Series
    1. Remove the lower control arm.
    2.  
    3. Remove the grease fittings and unscrew the bushings.
    4.  
    5. Slide out the pivot shaft.
    6.  
    7. Discard the old seals.
    8.  

    To install:
    1. Install new seals on the pivot shaft.
    2.  
    3. Slide the shaft into the arm.
    4.  
    5. Start the bushings into the arm and center the shaft in the bushings. Hand tighten the bushings to make sure the shaft doesn't bind.
    6.  
    7. Tighten the bushings to 280 ft. lbs. (380 Nm).
    8.  
    9. Check the pivot shaft for free rotation.
    10.  
    11. Install the grease fittings and lubricate the bushings.
    12.  
    13. Install the lower arm.
    14.  

     
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