Even though we had a working rear driveline, the “slip-yoke versus fixed yoke” thing really bothered us, and we ended up getting a fixed yoke kit from Rugged Ridge. This required another call to J.E. Reel for yet another driveshaft. Depending on how much rear travel you have, you may be able to get away with a non-CV driveshaft (less costly and fewer parts to wear out). The guys at J.E. Reel can help you figure out what you need based on some simple measurements.