selling truck and putting it back to stock. as stated above for NBS 10 bolt, should fit any GM 8.5/8.6 10 bolt rear end. Low miles. Under 6000 miles on it and bearings, Changed gear lube after 500 mile break in period and once again around 2500. It's clean and like new! No racing and it was in an automatic so clutch drops. If someone wants the bearings and races I'll pull them and send them with. I still have my old ones with the G80 and 3.73's I have no problem re using them. I can mark carrier bearings, races and send shims marked too, so in theory there shouldn't be any need for set up other than running a mesh pattern to be sure (Providing you have an 99-06 and 07, 1500 series truck/SUV with 10 bolt rear) Can even mark pinion & pinion nut so all that's needed is a 1/8" of a turn past mark then stake it. Figured this might be helpful to some people and save some serious time on the instal. Will sell carrier separate. Possibly gears. May keep them (gears) if this gets broken up. With gear lube and master rebuild kit this cost me over $800. Giving it away at $500 + ride.