AutoZone 2003 Ford Truck Explorer Sport Trac 2WD 4.0L SFI SOHC 6cyl | Repair Guides | Suspension & Steering | Rear Suspension | Rear Axle/lower Control Arm Assembly | AutoZone.com

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    GM Corsica/Beretta 1988-1996 Repair Guide

    Rear Axle/Lower Control Arm Assembly

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    The control arms and axle are one unit. The axle structure itself maintains the geometrical relationship of the wheels relative to the body. The axle assembly attaches to the underbody through a rubber bushing located at the front of each control arm. Each control arm bolts to underbody brackets.

    REMOVAL & INSTALLATION



    1988-90 Vehicles

    See Figure 1

    1. Raise and safely support the vehicle, then place jackstands under the control arms.
    2.  
    3. Remove the stabilizer bar from the axle assembly.
    4.  
    5. Remove the wheel and tire assembly and brake drum.
    6.  


    WARNING
    Do not hammer on the brake drum as damage to the bearing could result.

    1. Remove the shock absorber lower attaching bolts and paddle nuts at the axle and disconnect the shocks from the control arm.
    2.  
    3. Disconnect the parking brake cable from the axle assembly.
    4.  
    5. Disconnect the brake line at the brackets from the axle assembly.
    6.  
    7. Lower the rear axle and remove the coil springs and insulators.
    8.  
    9. Remove the control arm bolts from the underbody bracket, then lower the axle.
    10.  
    11. Remove the hub attaching bolts and remove the hub, bearing and backing plate assembly.
    12.  
    13. Install the hub, bearing and backing plate assembly. Hold the nuts and tighten the attaching bolts to 38 ft. lbs. (51 Nm).
    14.  



    Click image to see an enlarged view

    Fig. Fig. 1: Exploded view of the rear axle assembly - 1988-92 vehicles

    To install:
    1. Install the stabilizer bar to the axle assembly.
    2.  
    3. Place the axle assembly on a transmission jack and raise into position. Attach the control arms to the underbody bracket with bolts and nuts. Do not tighten the bolts at this time. It will be necessary to tighten the bolt the bolt of the control arm at standing height.
    4.  
    5. Install the brake line connections to the axle assembly.
    6.  
    7. Attach the brake cable to the rear axle assembly.
    8.  
    9. Position the coil springs and insulators in seats and raise the rear axle.
    10.  
    11. The end of the upper coil on the springs must be parallel to the axle assembly and seated in the pocket.
    12.  
    13. Install the shock absorber lower attachment bolts and paddle nuts to the rear axle and tighten the bolt to 35 ft. lbs. (47 Nm) for Corsica, and to 43 ft. lbs. (58 Nm) for Beretta.
    14.  
    15. Install the parking brake cable to the guide hook and adjust as necessary.
    16.  
    17. Install the brake drums and wheel and tire assemblies. Tighten the lug nuts to 100 ft. lbs. (140 Nm).
    18.  
    19. Partially lower the vehicle, then bleed the brake system, as outlined in Brakes .
    20.  
    21. Carefully lower the car.
    22.  
    23. Tighten the lower control arm-to-body bracket attaching bolts to 66 ft. lbs. (90 Nm).
    24.  

    1991-96 Vehicles

    See Figures 2 and 3

    1. Raise and safely support the vehicle with jackstands.
    2.  
    3. Support the rear axle assembly with a jackstand.
    4.  
    5. Remove the rear wheel and tire assemblies.
    6.  
    7. Disconnect the brake pipe from the brake pipe brackets on the axle assembly. This will ensure that the axle is not suspended by the brake pipes and hoses.
    8.  
    9. Remove the shock absorber lower attaching bolts and nuts at the axle and disconnect the shocks from the control arm.
    10.  



    Click image to see an enlarged view

    Fig. Fig. 2: Unfasten the lower retainers, then detach the shock from the control arm

    1. Lower the rear axle, then remove the springs and insulators.
    2.  
    3. Disconnect the parking brake cable at the equalizer unit and right wheel assembly.
    4.  
    5. Detach the ABS wiring connector and mount clip located near the fuel tank.
    6.  
    7. Disconnect the right and left brake lines.
    8.  
    9. Unfasten the control arm bolts from the underbody bracket, then carefully lower the axle from the vehicle.
    10.  



    Click image to see an enlarged view

    Fig. Fig. 3: Rear axle removal and installation - 1996 vehicles

    To install:
    1. Place the axle assembly on a transmission jack and raise into position. Attach the control arms to the underbody bracket with bolts and nuts hand-tight. Do not tighten the bolts at this time. It will be necessary to tighten the bolts of the control arm at standing height.
    2.  
    3. Connect the right and left brake lines.
    4.  
    5. Attach the ABS electrical connectors.
    6.  
    7. Connect the parking brake cable at the equalizer unit and right wheel assembly.
    8.  
    9. Position the upper and lower insulators, using adhesive, and install the springs in the seats and raise the rear axle.
    10.  
    11. The end of the upper coil on the springs must be parallel to the axle assembly and seated in the pocket.
    12.  
    13. Install the shock absorber lower attachment bolts and nuts to the rear axle and tighten the bolt to 35 ft. lbs. (47 Nm).
    14.  
    15. Install the right and left side brake line bracket mount bolts to the body and tighten to 8 ft. lbs. (11 Nm).
    16.  
    17. Install the wheel and tire assemblies. Tighten the lug nuts to 100 ft. lbs. (140 Nm).
    18.  
    19. Bleed the brake system and lower the car.
    20.  
    21. Tighten the lower control arm-to-body bracket attaching bolts to 52-59 ft. lbs. (70-80 Nm) plus an additional 120 degree rotation.
    22.  

     
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