So, this is the first Powerstroke I've owned. It's a 1996 F-250 with the 7.3L stroke. Right now I've been having an unduly amount of trouble with the u joint's going into the rear end. This last time around it's cost me the transmission. I was wondering if anyone has any advice as to a possible solution for this problem. I have a brand new driveline balanced and u joints installed by the company that did the repair. The only thing I touched was the install on the rear end and the transfer case. Any advice is welcome, Thanks.