I have a 2003 chevy 1500HD with a leveling kit put in(torsion keys)and i just pick up some 20x10wheels and i need to know which tire size do i need,i was thinking 305/50/20,i need help!!!.

 

I used to sell tires about 20 years ago and we had what was called a "tire fitment guide". If you changed the original wheel size on a vehicle the guide would tell us what size tire would still fit under the fenders on a patucular vehical. I would think tire dealers still have such a guide for todays tires.