Auxiliary Air Outlet Duct Replacement for GMC Truck TopKick C-Series (Conventional) C6/C7/C8 2003

1. Remove the rear bench seat. Refer to Rear Bench Seat Replacement .



2. Remove the auxiliary outlet duct retaining screws (2, 4).
3. Remove the auxiliary outlet duct.

1. Install the auxiliary air outlet duct.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the auxiliary air outlet duct screws (2, 4).

Tighten
Tighten the screws to 2 N·m (18 lb in).

3. Install the rear bench seat. Refer to Rear Bench Seat Replacement .