Transmission & Transfer Case
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 GMC C3500 HD, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Remove fill plug. Check oil level. Oil should be level with bottom of fill hole. Apply Thread Sealant (GM P/N 12346004) or equivalent, to the fill plug threads. Install fill plug and tighten to specification. See TORQUE SPECIFICATIONS .