GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Astro - 2WD 🢒 Body and Accessories 🢒 Seats 🢒 Rear Bench Seat Replacement

Removal Procedure

    Object Number: 300221 Size: SH
  1. The rear seat release lever is a 2 stage mechanism. In order to release the latch, 2 levels of lift effort are required:
    2. 1.1. A low lift effort to overcome the first stage
    1.2. A second lift effort in order to fully release the latch mechanism
  2. Release the latch mechanism.
  3. Remove the rear seat from the vehicle.

    4. Object Number: 300227 Size: SH
  4. Remove the rear seat riser cover.

    5. Object Number: 300226 Size: SH
  5. Remove the seat riser bolts from the seat.
  6. Remove the seat risers from the seat.

Installation Procedure

    Object Number: 300226 Size: SH
  1. Install the seat risers to the seat.

    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.

  2. Install the seat riser bolts to the seat.

    3. Tighten
    Tighten the seat riser bolts to 25 N·m (18 lb ft).


    Object Number: 300227 Size: SH
  3. Install the seat riser cover.
  4. Install the seat to the vehicle:
    5. 4.1. Lift the seat into position.
    4.2. Lower the front hooked retainers onto the anchor pins in the floor anchor plates.
    4.3. Lower the rear latch assemblies onto the anchor pins in the anchor plates.
  5. Verify that the seat is securely latched by pulling up on the seat.