do 3:73 gears work good on an auto. How much better power will i feel with them.

 

They will work fine. How much of an improvement you feel is dependant on what ratio you have now. If it's a daily driver I would not go any higher than a 3.73 ratio.

 

i switched from 3.27 to 3.73 in an aod and hated it...hardly noticed a diff..... 4.10's for sure on a aod

check your door tag...ax code m=2.73 z=3.08 e=3.27

it will still run 14's w/ 3.73's and just barely

 

what do you mean by AX code?

 

For autos, I would def. go 4:10's. It will hurt the gas milage but if you are looking for an awsome upgrade go w/ the 4:10s. You will love them.