if you can in fact swap a non-disco shaft and carrier and be rid of the disco, I say go for it. People talk about how the newer d30s have the same size u-joints blah blah blah, well there is a lot of other great stuff about the 44, my d30 brakes could never lock up 33 if I tried, and I just finished my Waggy 44 and I locked up the 33s several times on accident! also the tubes are 1/2 wall! balljoints, high steer... the list goes on...