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Home >> GMC >> 2004 >> Sonoma >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Rear Suspension System) >> Repair Instructions >> Spring Shackle Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Safari and 2004 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the spring shackle to the frame.
  2. Install the spring shackle mounting bolt.
    Fig 1: Spring Shackle Mounting Hardware
    GM178948Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the spring shackle mounting nut.

    Tighten:  Tighten the spring shackle mounting nut to 140 N.m (103 lb ft).

  4. Raise the rear axle.
  5. Install the lower shock absorber mounting bolt and nut.

    Tighten:  Tighten the lower shock absorber mounting nut to 107 N.m (79 lb ft).

    Fig 2: Identifying Shock Absorber Lower Mounting Nut & Bolt (LH)
    GM178961Courtesy of GENERAL MOTORS CORP.
  6. Install the leaf spring to spring shackle mounting bolt and nut.

    Tighten:  Tighten the leaf spring to spring shackle mounting nut to 100 N.m (74 lb ft).

  7. Remove the rear axle support.
  8. Lower the vehicle.
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