I disagree, I think somehow you have had some bad experiences with lifting trucks and such. 31" tires come stock and should do just fine, suggesting 30" tires doesnt really make sense if it comes larger from the factory. 32" tires would be fine and would not take many modifications to fit (depending on width, backspacing and lift). There would likely be a noticable power loss but you could compensate with regearing if needed. And redtruck, you mentioned in your other post that you had to have 9" of lift to fit 32s, on an 04 that doesnt make any sense?