put truck in drive won't move on 2004 Dodge Ram 2500

some times i put my truck in drive it doesn't move you can feel it go into drive but when you try to move it sounds like it slips had trans serviced pan & oil very clean. do the rears have clutchs in them and should a special oil be used? 34668

Asked by for the 2004 Dodge Ram 2500
Sounds like an internal transmission failure. Dodge call for Mopar ATF+4 fluid.
1 more answer
Take your Dodge to an ATRA certified trans shop and have them test drive your truck. ATRA is the American Transmission Rebuilders Association, to be an ATRA certified shop is no joke, you have to really know your stuff.