I have a 2003 gmc sierra denalli I want to put a set of 20's on but what size tire not to mess up my computer or the speed odometer

I have a 2003 gmc sierra denalli I want to put a set of 20's on but what size tire not to mess up my computer or the speed odometer 1 Answer

I have a 97' GMC Sierra K1500. I'm sitting at the stock HP. I want to be around 450-500. I want to know how to do this. Don't tell me to just "do this, this, and this" I want to know why. 2 Answers

I'd also like to know what gears I should have in the rear and what type

Hi, I was wondering if any of you knew if a GMC 2012 Sierra would fit a 484 stroker engine? 4 Answers

if not what would be the best option for a good motor?

would a duramax gmc sierra with a PPE chip would be faster than a gt2 or a f430? 2 Answers

duramax turbo diesel with a PPE chip which the chip is only 400 hp

Driveshafts, '79 GMC 5 Answers

I'm swapping a TH350 out of my 1979 GMC Sierra Grande. It had a TH350 with a NP203 transfer case. Now I will be putting a TH400 with another NP203. Am I going to have to have new front and rear sha...