*Update* Pulled the shaft and replaced the whole shaft and well check out the ujoint. http://www.1337info.com/images/alan/truck/ujoint.JPG there were no needle bearings in the cracked up end cap! I have no idea where they went but they weren't in there. THe truck still vibrates though, any ideas? I think I need a new rear ujoint, opinions please. From like 35 to 45(on the speedo no idea what actually) my K5 shakes hard. Like if you look at the steering column the wheel is noticeable shaking around. After like 45 it seems to go away but you can like just sort of feel the vibration still there and CDs skip in my CD player from it. When I come to stops and start going osmetimes I hear a clunk from the rear of the truck.