tires and wheels

[rambito85]

whats up fellas. I was wondering if you guys can give me advice, im new to the hummer world i just picked up an 03 H2 and wanted to throw some nice shoes on it. i was going to go with the rockstar xd wheels and I needed to kno before i bought them if should go with the 20x10 or 20x12 and what was the maximum size tires i could use without any rubbing or clearance issues. i do not want to use any lift kits i want to keep the stock height. thanks for any advice it is appreciated greatly.