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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 743 (SEAT SYSTEM)REPAIR INSTRUCTIONSSEAT REPLACEMENT (MANUAL)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 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Seat Cushion Frame To Adjuster Bolts
    GM71222Courtesy of GENERAL MOTORS CORP.
  1. Install the adjuster(s) if removed. Refer to Seat Adjuster Replacement - Front .
  2. Install the seat cushion cover if removed. Refer to Seat Cushion Trim Cover and Pad Replacement .
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the buckle side of the seat belt to the adjuster, if removed.

    Tighten:  Tighten the seat belt buckle side mounting nut to 50 N.m (37 lb ft).

  4. Align the adjusters with their locking pawls engaged in the same slots side to side.
  5. Install the seat adjuster adjustment bar.
  6. Position the seat forward on the seat adjusters.
  7. Check that the locking pawls are completely engaged in the slots.
  8. Position the seat adjusters on the rear floor studs.
  9. Connect the electrical connector (drivers side).
  10. Install the nut to the rear inboard stud (net locating stud).
  11. Install the nut to the rear outboard stud.

    Tighten:  Tighten the adjuster mounting nuts to 50 N.m (37 lb ft).

    12. Fig 2: Seat Mounting Component View
    GM71215Courtesy of GENERAL MOTORS CORP.
  12. Move the seat rearward.
  13. Install the nuts to the front adjuster legs.

    Tighten:  Tighten the adjuster mounting nuts to 50 N.m (37 lb ft).

  14. Install the adjuster leg covers.
  15. Secure the covers with push pins.
    16. Fig 3: Sunroof View
    GM63735Courtesy of GENERAL MOTORS CORP.
  16. Install the roof lift off panel if removed, or raise the convertible top if lowered.
  17. Remove any protective covering.
RENDER: 1.0x

NO RELATED

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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.