I just counted the ring and pinion teeth on my 1989 YJ Dana 30, and I have a 3.07 setup. I would like to move up to a 3.73 or even a 4.10, but here are my questions.
1) Will my current carrier work for a 3.73 or higher?
2) Will a 3.73 or higher fit into the Dana 30 I have with 3.07 currently installed?
3) How do I determine if I have a standard for reverse rotation?
I assume the carrier probably won't work, so that being the case, does anyone have a recommendation for a locker. I was looking at a EATON E-locker.