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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 215 (REAR SUSPENSION SYSTEM)REPAIR INSTRUCTIONSLEAF SPRING REPLACEMENTINSTALLATION PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  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.
    Fig 1: Installing Leaf Spring To Front Hanger Bracket Mounting Bolt & Nut
    G01269757Courtesy of GENERAL MOTORS CORP.
  4. Install the leaf spring (1) to the spring shackle (5) mounting bolt and nut (3).
    Fig 2: Installing Leaf Spring To Spring Shackle Mounting Bolt & Nut
    G01269758Courtesy of GENERAL MOTORS CORP.

    Important:  Do not reuse the leaf spring U-bolts.

  5. Install the leaf spring spacer.
  6. Install the leaf spring U-bolts.
  7. Install the leaf spring anchor plate.
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
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:

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