chevrolet all the way

iTrader: (24)

im not sure what kind of chunk this is but it is for a 8.5 10 bolt rear end and the set of gears are 3.73s that i have so any input on if this is good to put in or not would be amazing because i have a one legger right now and it sucks. i have 3.42s right now would this be a good change since i already have them, i dont want to go to low on the gears because this truck goes with me on vacations and i want to pass some gas stations. i have an 01 4.8 with just boltons like fipk k&n, jba plug wires, borla exhaust without cats, electric fans on their way, and replacing hypertech tune with wheatley. also anyone have reviews on wheatley tune? ive heard good things and i think im goin with that but if anyone has other suggestions im all ears otherwise im goin wheatley. thanks in advance yall!

Grumpy5.3

iTrader: (14)

that carrier didnt come out of a truck. they do not have reluctor rings on them.

chevrolet all the way

iTrader: (24)

can this work in my truck??