i'm new here.. just getting into building up my sierra. it's a 2002 2wd ecsb with factory towing package stock 3.42 locker. I have found some 4.10's online 180 somthin bucks for a 3 series 8.5" 10 bolt rear...from what I found in researching the rearend... I think I know which one to get. With my build it really breathes after 3800 I know I need a stall..but... I need to get off the line quicker.. hell it wont even break loose powerbrakin it... but it will scare the **** outta ya on a backroad...any advice from the miraculous minds on the forum would be greatly appreciated.. btw good meeting yall.

 

Welcome to the forum. Gear swap to 4.10's is a good move!