Steering U Joint Questions

Well, that looks to be a fail. No splines, keyed to the input shaft of the steering rack.
https://www.oreillyauto.com/detail/.../1874/automotive-suv-2000-dodge-durango?pos=0
https://www.oreillyauto.com/detail/...-suv-2000-dodge-durango?q=steering+rack&pos=0