GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C Sierra - 2WD 🢒 Body and Accessories 🢒 Seats 🢒 Front Seat Back Hinge and Recliner Mechanism Replacement

Removal Procedure
  1. Remove the front seat from the vehicle. Refer to Front Seat Replacement - Bucket .

    2. Object Number: 378528 Size: SH
  2. Remove the seat trim panel. Refer to Front Seat Trim Panel Replacement .
  3. Remove the seat cushion frame. Refer to Front Seat Cushion Frame Replacement .
  4. Remove the seat back frame. Refer to Front Seat Back Frame Replacement .

    5. Object Number: 381498 Size: SH
  5. Remove the outboard pivot bolt.

    6. Object Number: 378534 Size: SH
  6. Remove the bolts holding the seat back folding mechanism.

    7. Object Number: 396820 Size: SH
  7. Unsnap the recliner cable (1) from the folding mechanism (3).
  8. Remove the front recliner attachment bolts (4).
  9. Remove the recliner screw (5).

    10. Object Number: 381469 Size: SH
  10. Remove the U-channel (1).
  11. Remove the drive cable, if equipped with a power recliner.
  12. Unsnap the recliner cable from the recliner mechanism.
  13. Remove the recliner from the seat frame.

Installation Procedure
  1. Attach the recliner cable to the recliner mechanism.
  2. Install the drive cable, if equipped with a power recliner.

    3. Object Number: 381469 Size: SH
  3. Install the U-channel (1).

    4. Object Number: 396820 Size: SH

    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.

  4. Install the recliner screw (5).

    5. Tighten
    Tighten the screw to 10 N·m (89 lb in).

  5. Install the front recliner attachment bolts (4).

    6. Tighten
    Tighten the bolts to 53 N·m (39 lb ft).

  6. Attach the recliner cable (1) to the folding mechanism (3).

    7. Object Number: 378534 Size: SH
  7. Attach the bolts holding the seat back folding mechanism.

    8. Tighten
    Tighten the bolts to 21 N·m (15 lb ft).


    Object Number: 381498 Size: SH
  8. Install the outboard pivot bolt.

    9. Tighten
    Tighten the bolt to 35 N·m (26 lb ft).

  9. Install the seat back frame. Refer to Front Seat Back Frame Replacement .
  10. Install the seat cushion frame. Refer to Front Seat Cushion Frame Replacement .

    11. Object Number: 378528 Size: SH
  11. Install the seat trim panel. Refer to Front Seat Trim Panel Replacement .
  12. Install the front seat in the vehicle. Refer to Front Seat Replacement - Bucket .