3, 3 1/2 & 4" are pretty common....
But, like I said, you need to stack some bead on two sides to keep them from spinning.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.