reving before shifting on 2002 Dodge Ram 1500

engine reves before shifting gears when throttle is pushed.

Asked by for the 2002 Dodge Ram 1500
If you have a manual transmission it sounds like the clutch disc is worn and not being sufficiently "clamped" between the engine flywheel and the clutch pressure plate. In this case the transmission will have to be removed to replace the clutch components.