My driveline is jacked up where the splined part goes into the yoke has a about 1/4" slop in it. The shaft used to be the front i shortend it about 2 inches and put it on the back (doing a spring over) and the U JOINTS are brand new, the shaft doesnt feel sloppy out of the truck but as soon as i tighten it down it has the slop Anyone have any suggestions on how to fix this, or have a yoke for sale?