2006 silverado gear swap

[manny]

I have a 06 silverado basically all stock. I have the stock 3.23 gear ratio I plan to do a gear swap to a 3.73 ratio other than adjust the parameters for gear ratio do I have to re-adjust the shift points aswell? And will this void my warranty due the fact that I have to keep the tune at all times to keep my truck shifting properly??

[mikel]

You will still be able to set the truck back to stock if you need to go to the dealer.

Thanks