I have a 03 Silverado with the Big Baer brake kit on it and it calls for a atleast a 18" wheel. I have some nice Bonspeeds for the summer but need some winter wheels just incase I have to drive it. I was thinking about buying some of the new Escalade wheels from ebay, are they the same bolt pattern? Here are the specs on them.
18x8, 6x5.50, 31mm offset

 

They should fit.... I've seen them on an 04 GMC Sierra Crew Cab.

 

Thanks