Picked up a brand new set of chrome H2 wheels from a dealer for $300!!
After doing some searching on here I see that the only way to use the Hummer center cap is to use a 2" spacer on the rear wheels. Is this safe?

I liked the look with the stock caps from the HD on the H'2s, pull the black tabs out from the stock caps & trim down flush and reinstall black tabs. This will help to have more threads to screw down the center cap.