GM Service Manual Online
For 1990-2009 cars only

Rear Seat Back Cushion Replacement Extended Cab

Removal Procedure

  1. Remove the rear seat from the vehicle. Refer to Rear Seat Replacement .

  2. Object Number: 408533  Size: SH
  3. Unfasten the J-clip on the rear of the seat. Pull back the trim cover in order to expose the seat back side bolts (1).
  4. Remove the seat back side bolts from the seat back.
  5. Remove the seat back from the seat.

Installation Procedure

  1. Position the seat back on the seat.

  2. Object Number: 408533  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.

  3. Install the seat back side bolts (1).
  4. Tighten
    Tighten the seat back side bolts to 35 N·m (26 lb ft).

  5. Pull the trim cover over the seat. Fasten the J-clip.
  6. Install the rear seat in the vehicle. Refer to Rear Seat Replacement .

Rear Seat Back Cushion Replacement Extended Cab w/ 4th Door

Removal Procedure


    Object Number: 276327  Size: MH
  1. Remove the seat from the vehicle. Refer to Rear Seat Replacement .
  2. Remove the armrest. Refer to Rear Seat Armrest Replacement .
  3. Open the access flaps at the lower rear corners of the seat back in order to allow access to the seat-back-to-frame retaining bolts.
  4. Remove the bolts from the seat back frame (6).
  5. Remove the seat back frame (6) from the seat back cushion frame (7).

Installation Procedure


    Object Number: 276327  Size: MH
  1. Install the seat back frame (6) to the seat back cushion frame (7).
  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.

  3. Install the bolts to retain the seat back frame to the seat cushion frame.
  4. Tighten
    Tighten the bolts to retain the seat back frame to the seat cushion frame to 35 N·m (26 lb ft).

  5. Secure the access flaps at the lower rear corners of the seat back.
  6. Secure the armrest to the seat back. Refer to Rear Seat Armrest Replacement .
  7. Install the seat to the vehicle. Refer to Rear Seat Replacement .

Rear Seat Back Cushion Replacement 60/40 Split

Removal Procedure


    Object Number: 276335  Size: SH
  1. Remove the seat from the vehicle. Refer to Rear Seat Replacement .

  2. Object Number: 276555  Size: SH
  3. Remove the armrest. Refer to Rear Seat Armrest Replacement .
  4. Open the access flaps at the lower rear corners of the seat back to allow access to the seat back frame retaining bolts.
  5. Remove the bolts from the seat back frame.
  6. Remove the seat back frame (10) from the seat back cushion frame (11).

Installation Procedure


    Object Number: 276335  Size: SH
  1. Install the seat back frame (5) to the seat cushion frame.

  2. Object Number: 276555  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.

  3. Install the bolts which retain the seat back frame (11) to the seat cushion frame.
  4. Tighten
    Tighten the seat back frame bolts to 35 N·m (26 lb ft).

  5. Secure the access flaps at the lower rear corners of the seat back.
  6. Install the armrest to the seat back. Refer to Rear Seat Armrest Replacement .
  7. Install the seat to the vehicle. Refer to Rear Seat Replacement .