i have a dana 44 with 4.11s and a locker in the front and then i have a 12 bolt with 4.11s and its locked in the rear to and i have never had a problem with my front axle but my rear i always seem to brake something. its cuz i like to do burnouts for the girls with the big boobies lol for some reason they like to see 39 inch boggers smoke......... sorry if im out of line