[Chevy Truck Turks Dude]

Checking to see what the largest tire/rim that will fit on the new 2015 2500 HD silverado, It comes stock with a 265/65R/18. Want to go to at least a 20" and a higher wider tire. Need to make sure hole/lug patterns are same in the 18 and 20. Stock tires/rims are whimpy for this model.
Thanks

 

[TexusTim]

why don't you build one on line and see what the largest selection that gm. offers. I know it can take 20" 265/60 that's the upgrade option. you may have to get the computer assigned this tire size by a tech at a dealership.