GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC Suburban - 4WD 🢒 Body and Accessories 🢒 Frame and Underbody 🢒 Running Board Replacement

Removal Procedure

    Object Number: 264954 Size: SH
  1. Remove the bolts that attach the running board end caps to the body.
  2. Remove the nuts that secure the running board to the T-bolts and the brackets.
  3. Remove the running boards from the vehicle.

    4. Object Number: 264956 Size: SH
  4. Remove the nuts that secure the running board extensions and the mat to the running board frame.
  5. Remove the extensions and the mat from the running board frame.

Installation Procedure

    Object Number: 264956 Size: SH
  1. Install the mat and the extensions to the running board frame.

    2. Notice: 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.

  2. Install the nuts that secure the mat and the extensions to the running board frame.

    3. Tighten
    Tighten the nuts to 1 N·m (9 lb in).

  3. Install the running board assembly to the vehicle.
  4. Install the nuts that secure the running boards.

    5. Tighten
    Tighten the nuts to 23 N·m (17 lb ft).

  5. Install the bolts that secure the end caps to the vehicle.

    6. Tighten
    Tighten the bolts to 17 N·m (13 lb ft).