2001 Z71 rear end

if anyone has the answer to which code in the glove box states the size of rear end in my truck it would be greatly appreciated. i know the GT4 is for my 3.73 gears but im looking for the size so i know which set to buy. thanks

if anyone has the answer to which code in the glove box states the size of rear end in my truck it would be greatly appreciated. i know the GT4 is for my 3.73 gears but im looking for the size so i know which set to buy. thanks

Stock rear for your truck is a 8.6" 10bolt 30 spline.

Thanks for the info. now i guess its time to get dirty

If your big into wheeling hard, in mud or rocks, watch out for that G80 locker in that rear end, it is def. the weak link in that rear axle. Especially if your runnin larger than stock tires.