GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Seats 🢒 Seat Hardware, Trim, and Upholstery 🢒 Rear Seat Back Cushion Replacement

Removal Procedure
  1. Remove the seat from the vehicle. Refer to Rear Bench Seat Replacement.

    2. Object Number: 333678 Size: SH
  2. Partially remove the seat back cover at the lower rear corners of the seat back in order to access the seat back hinge retaining bolts.
  3. Remove the bolts from the seat back frame.
  4. Remove the seat back frame from the seat back cushion frame.

Installation Procedure

    Object Number: 333678 Size: SH
  1. Install the seat back frame to the seat cushion frame.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the bolts in order to retain the seat back frame to the seat cushion frame.

    3. Tighten
    Tighten the bolts to 35 N·m (26 lb ft).

  3. Secure the access flaps at the lower rear corners of the seat back.
  4. Install the seat to the vehicle. Refer to Rear Bench Seat Replacement.