The Danas are definitely different to work on for sure. As Mike eluded to about the case spreader, I've seen people just struggle their asses off trying to do it without one. It's just so much easier to do it the right way. MOST ALL sailsbury style rears (those that unload from the rear) are supposed to use a case spreader, but hardly anybody does it and most people have a tough time without one. I've seen a LOT of people break carrier shims trying to beat them in with a hammer. Had they used a spreader, the whole thing will just fall right in.