Emeterio1

Thank you for your advise it is something to think about it, But I do not know to reset the computer to gear change any suggestion will be appreciated. thank you.

how much will cost for the tune for the gear change

I have 2012 Silverado 1500 Lt front differential when bad, I bought a used one but it was 3.7 and mine is 3.4 my question is can I change the gear ratio in the 3.7 to 3.4 I change the ring gear and the pinion thank you