Chevrolet Full Size Cars 1979-1989

Rear Lower Control Arm



Remove and install ONLY one lower control arm at a time. If both arms are removed at the same time, the axle could roll or slip sideways, making installation of the arms very difficult.

  1. Raise and support the rear of the vehicle using jackstands under the rear axle.
  3. If equipped, remove the stabilizer bar.
  5. Remove the control arm attaching fasteners, then remove the control arm. To install:
  7. Position the control arm to the vehicle, then install the fasteners, but dot not tighten fully at this time unless the vehicle's weight is being supported by the rear axle. If the weight is on the suspension, tighten the control arm bushing nut to 92 ft. lbs. (125 Nm) and the control bushing bolt to 122 ft. lbs. (165 Nm).

The control arm fasteners must be tightened with the vehicle suspension at curb height. If the vehicle is supported by jackstands under the rear axle, this should be sufficient to duplicate that circumstance. If there is sufficient clearance and you so desire, the fasteners may be fully tightened after lowering the vehicle.

  1. If equipped with a stabilizer bar, install and tighten the bracket-to-control arm fasteners to 21 ft. lbs. (29 Nm) and/or the stabilizer-to-bracket fasteners to 52 ft. lbs. (70 Nm).
  3. Remove the jackstands and carefully lower the vehicle. If not done already, tighten the control arm fasteners to specification.