I am getting a lound bang when putting the TH350/203 in reverse so I changed a U-joint that had just a hint of slop. I didn't fix the problem so I'm thinking it is my drive shaft. The slip yoke and drive shaft can be moved up and down where they meet. I took it a part but I couldn't tell if the teeth on the drive shaft were worn or not and I couldn't see much on the yoke but there is a pretty good amount of movement. If that is my problem ,Is the drive shaft shot? How much for a new yoke and what would it cost to have the splines replaced on the driveshaft?