rwalker, If you have a lot of load on throttle (picking up speed fast) is it as bad? Mine is barely noticeable when gaining speed fast, it is when I'm maintaining speed or gradually gaining speed, or gradually slowing down that it vibrates and roars. If I release pedal completely it's gone. Today is Friday I'm going to try to order ujoints so I can change next weekend, if that fixes I will get back with you. Big Country says his was like this and he changed just back ujoint and fixed.
Shane