ok i know this has been posted and asked 10000 times but im busy and dont have time to search right now. with my 08 silverado reg cab 4x4 running 265/70R17 tires... i just got my ccm 2" leveling kit and am wanting to know what is the biggest tires i can run. i just bought a set of the aluminum 17" wheels off of an 07 avalanche and am going to go ahead and upgrade the tires at the same time. all help will be appreciated as usual. thanks guys and gals.