2009 Chevrolet Express Van Owner's Manual - Page 329

{ CAUTION: Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. { CAUTION: Rear Alternative Position (Diesel Vehicles) 4. Position the jack under the vehicle as shown. The front position jacking point is on the frame. The rear position jacking point is on the rear axle. If the exhaust system interferes in the jack location in the rear axle, such as in Diesel vehicles, place the jack (A) on the rear axle between the axle housing and the shock absorber bracket in order to avoid any interference with the exhaust pipe (B). Raising your vehicle with the jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoid personal injury and vehicle damage, be sure to fit the jack lift head into the proper location before raising the vehicle. 5. Raise the vehicle by turning the wheel wrench clockwise. Raise the vehicle far enough off the ground so there is enough room for the spare tire to fit. 5-89