Installation Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Leaf Spring-To-Front Hanger Bracket, Mounting Nut & Bolt
    GM830236Courtesy of GENERAL MOTORS CORP.
  1. Install the leaf spring to the vehicle.
  2. Perform the following procedure before installing the front hanger bracket mounting bolt.
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
  3. Loosely install the leaf spring to the front hanger bracket mounting bolt and nut.
  4. Fig 2: Leaf Spring, Spring Shackle, Mounting Bolt & Nut
    GM830230Courtesy of GENERAL MOTORS CORP.
  5. Install the leaf spring (1) to the spring shackle (5) mounting bolt and nut (3).
  6. Fig 3: Leaf Spring U-Bolts & Nuts
    GM830223Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.