Well, they are in. Love it, so much better than the 4:10's. I also put in my AirRaid CAI. The Jeep runs with a lot more oomph then before. Ok, so what kind of mileage should I expect now that I did all this, 14+ hoping?

Gents, throw me a bone.

 

what r u doing w/ your 4.10 gears??/

 

Does regearing void the factory warranty?

 

Any aftermarket part that is a direct cuase for a failure of a factory part is out of warranty. If you change gears and your Tranny blows and the dealer can't say for certain that the gears cuased the problem then it will be covered under warranty. Depending on how good your dealer is will dictate on how much you will have to argue on that issue.