opinions will vary, but please re-gear to something while you have it rebuilt. most will recommend 4.10, 4.56, or 4.88 gearing for 33s, with the general consensus being 4.56s i believe. but, you are indeed asking about a locker, so for that i would highly recommend going with a full case locker for the added strength and durability. these would include OX, ARB, Detroit, E-locker, ECTD, and a few other lockers. all of those except the Detroit are selectables, do some reading up on them to figure out which one you might prefer, or go with a detroit for a solid, reliable, durable auto locker that you'll never have to worry about.