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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 376 (SEAT SYSTEM)REPAIR INSTRUCTIONSSEAT BACK FRAME REPLACEMENT - FRONT (LUXURY (Y91))INSTALLATION PROCEDURE
1999 GMC Forward Control 5.7 R, Automatic

Installation Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure
WARNING: This page is about a different car, the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, and 2002 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the seat back frame.
    CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring the use of thread locking compound or sealant are identified in 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 bolts to the seat back hinges on the right and left side.

    Tighten 

    Tighten the bolts to the seat back hinges on the right and left side to 30 N.m (22 in lbs).

    3. Fig 1: Installing Seat Back Hinge Bolts & Seat Back Frame
    G01737196Courtesy of GENERAL MOTORS CORP.
  3. Install the lumbar support cable. Refer to Lumbar Support Cable Replacement (Luxury (Y91)) .
  4. Install the seat back cover and pad. Refer to Seat Back Cover and Pad Replacement - Front (All Except Luxury)  or Seat Back Cover and Pad Replacement - Front (Luxury Y91)  .
    5. Fig 2: Installing Seat Back Cover & Pad
    G01737197Courtesy of GENERAL MOTORS CORP.
  5. Install the bucket seat in the vehicle. Refer to Seat Replacement - Bucket (All Except Luxury)  or Seat Replacement - Bucket (Luxury Y91)  .
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.