I was looking thru my extended service plan and the book says that if i modified my drive-train, chassis, put over-sized tires and wheels on or lifted the truck that it would void my warranty. my dealership treats me well and stuff and i dont want to make a bad name for myself telling them they need to fix my $h!t after i went off roading. I talked to the guy that my whole family has bought their fords from and he said doing a body and tires shouldn't be a problem because im not modifying the factory ride stance. All Im looking to do is put 265/75/16 tires and a 3" pa body lift on my 06.
Do you really think my dealer is gonna tell me to go pound sand when i come in for a repair?
Any help?

Do you really think my dealer is gonna tell me to go pound sand when i come in for a repair?
Any help?

If something is stressed on the suspension they could blame the larger mass from the tires. If they used a BL as an escape route thats a new low.
I just went in and never told them anything... if they asked, I told them I bought the truck that way and they always fixed it... My warranty has ran out since then so I do all my own repairs now.
Under the Magnuson- Moss act, The warranty cannot be voided as long as the aftermarket isn't what cause the failure.
http://www.impalaclub.com/naisso/magmoss.htm
http://www.impalaclub.com/naisso/magmoss.htm
Your fine as long at you don't run 40s on the stock axles and expect them to repair it when your axles break.