Chevrolet Full Size Cars 1979-1989

Coil Springs



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Fig. Fig. 1 Rear coil spring installation

  1. Raise and support the vehicle safely using jackstands under the frame.
  3. Position a hydraulic jack under the axle and support it.
  5. Disconnect the shock absorber at the bottom on the side where the spring is being replaced.
  7. Remove the brake hose support bolt or junction block retaining bolt, then support the brake hose aside to allow the axle to drop. For most vehicles, this should provide the necessary clearance to lower the rear axle. However, if this is not sufficient, DO NOT allow brake lines to be stretched or bent as they will be damaged. If necessary, disconnect the brake hydraulic line at the junction block located on the axle housing.
  9. Disconnect the upper control arm at the axle.

Note the direction which the spring ends are pointing for installation purposes.

  1. Slowly lower the axle to the bottom of its travel, then carefully pry the lower end of the spring over the axle retainer and remove the spring along with its insulator. To install:
  3. Install the spring in its frame seat along with its rubber insulator.
  5. Carefully pry the lower end of the spring over the vertical flange of the axle bracket spring seat.
  7. Position the spring so that the coil end is pointing in the direction noted during removal. For most applications, the upper coil points toward the left side of the car.
  9. Raise the axle and connect the lower shock absorber mount. While holding the stud hex, tighten the lower mounting nut to 62 ft. lbs. (87 Nm) for vehicles through 1986 or to 48 ft. lbs. (65 Nm) for 1987 and later vehicles.
  11. Connect the upper control arm to the axle housing.
  13. Secure the brake lines to the axle using the support or junction block bolt, as applicable. If any lines were disconnected, fasten them, then properly bleed the hydraulic brake system.
  15. Remove the jackstands, then carefully lower the vehicle.