I have the opportunity to aquire a gm 11.5 from a '01-'03 duramax SRW 4x4. It had the driver's side hub bearing lock up, the mechanic pulled the driver's side apart, obviously let it sit in the weather, and it looks pretty rusty. Probably needs new drivers side rotor and hub assembly and axle shaft at first glance. The mech. claimed it was a d60 but after researching I was able to determine what it is. I also noticed the lack of lockers available (arb especially) just wanted to know if it is worth messing with. BTW newb here, and I did search so flame away.:flipoff2: Any help is appreciated. Intended use is for 1980 cj-5 crawler project. Plans are to extend wheel base,link front and rear w/ fox 2.5s, and 38.5-40 rubbers.