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.