2001 rear diff

To start off..I dont know number two about rear ends.. Mine went out yesterday and been hunting one every since. My truck is a 2001 chevy Z71
4x4 with 3.73 ratio. need help finding one or how to rebuild it. it cracked the deal that the pig pen goes in.. lol thanks

Pm Rons MAchince on here and he wil get you fixed up. sounds like you need a tru trac.

i build rear ends for a living, pm me if you have any questions