Originally Posted by
XRT_si
I've got the standard Ford Posi and am keeping the C-clips and seen they do shafts for what I want.
I was under the impression all 31 spline shafts use the big bearing?
I think they do, but you can get 28/31 both with the larger bearing.
Only issue with c-clips is if they break, your shaft falls out. Probably with disc brakes not such a huge issue. But with old drums it could be a huge issue. Most drag rules insist on c-clip elims so the shaft should never be able to leave the axle, although I'm sure the changes of them ever failing is remote.