2000 Dodge Durango

I have a 00 dodge durango 5.9ltr with 125k. Car runs very good, except when I hit speeds from 55-65 there is a shaking/vibrating sensation. When I let go of the gas it go's away, not in the wheel basically just the truck itself. Then when accelerating again vibrating occurs again. I heard it is the rear universal joints going bad. Possible? Or anything else? Tires are brand new alligned and balanced.
thanks keith
September 14, 2007.

Check out the related content below while we wait for the question to be answered by a professional mechanic.