My 2006 Silverado has the factory 20' crome 6 spoke wheels. since i purchased it ive always had mixed opinion on these rims, There a little flashy for my taste. So im talking to my friend at the motorcycle shop and he has recently purchased a set of "XL-XD" brand name 18' rims, and Sumoto A/T tires in a 33'. Its funny i showed these exact same tires and rims to my wife saying that there just what id like to have on my truck, they look a lot more off road and a lot less city slicker So he offer's to sell me his new/used set as he has just lifted his titan and want's 35' under it. So long story short he helped me sell my flashy rims and tires on ebay and now im mounting up what i wanted all along.. and the real icing on it is his tires have less than 2,000 miles on them. mine have over 10,000 sometimes, things just go your way