Dodge Ram Gas Owner's Manual page 330

330 WHAT TO DO IN EMERGENCIES
• For 2500/3500 4x2 series trucks, when changing a
front wheel, place the bottle jack under the frame
rail behind the wheel. Locate the jack as far forward
as possible on the straight part of the frame.
2500/3500 4X2 Jacking Location
• Operate the jack using the jack drive tube and the
wheel wrench. The tube extension, may be used, but
is not required.
• For 2500/3500 4x4 series trucks, when changing the
front wheel, assemble the jack drive tube to the jack
and connect the drive tube to the extension tube.
Place the jack under the axle as close to the tire as
possible with the drive tubes extending to the front.
Connect the jack tube extension and wheel wrench.