I have a u joint out on the front of my rear drive shaft. I went to the parts store and got new ones and they are way to big. Tryed ones from a ram same year same problem. Could it be possible that i have a shaft out of a jeep? Cause I ended up buyin 3 differn u jpints and makin one from them and i am still haveing a hard time getting the caps in. Any body have any idea. I bought the truck used and so far some of the parts on it are not even a dodge part. being not factory. Any help would be nice. other wise i am taking to a machine shop and having them fit it for what i need.