GM Service Manual Online
For 1990-2009 cars only

When the cab is ready to be lowered, follow the instructions below carefully. Before lowering the cab, be sure all filler caps are on properly.


    Object Number: 811271  Size: A3
  1. Remove the safety lock pin from the cab support by turning it and pulling it out.

  2. Object Number: 811272  Size: A3
  3. Squeeze the lever on the cap support to release the detent.

  4. Object Number: 811287  Size: B3
  5. Using the handle located at the bottom of the cab toward the back, lower the cab until the hook catches and the cab is held down.
  6. Push the primary tilt lever upward fully to lock the cab to the chassis.

  7. Object Number: 811277  Size: A3
  8. Reinstall the pin and turn it to keep the primary tilt lever from moving downward.

Caution: An unsecured cab could move suddenly causing an accident or an injury. Be sure the tilt cab is properly secured to the chassis before moving the vehicle.