I got a rubicon d44 dirt cheap. but I dont want to put it in my 89 if it is not much stronger then the d30. My question is can I have the tubes from the rubi 44 installed into a hp d44 out of a f150? What would I have to about the shafts? I have a good supply of f150 d44's because all the ford guys around here upgrade to 60's or 70's and they consider 44's cheap crap.