Removal (7.4L Express, Savana & G-Van)
WARNING: This page does not describe the selected car, but rather 55 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Yukon, 1999 GMC Suburban, 1999 GMC Sonoma, and 1999 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect negative battery cable. Remove oil level indicator tube. Raise and support vehicle. Drain oil from crankcase. Disconnect exhaust pipes from exhaust manifolds. Remove starter. Remove flywheel cover. Remove oil pan bolts. Remove oil pan and gasket.