Hello, I just purchased a 2001 SuperCrew on 8/31/00 and have some questions for you all. I would like to make some changes to my truck, but don't want to void my warranty. Does anyone know where I can find that information or exactly how/what I can change? I've seen that some of you have changed tires, exhaust, air filter systems etc. and I would like to do the same, but don't want Ford all over me for making the changes.

Thanks in advance for your help.

Wing