Well I couldn't stand how the center caps stuck out so much on the 20" KMC Rockstars so I had to modify them.
After reading some of the posts about them I decided to take a pipe cutter to the plastic posts on the inside of the center caps. I took 1" off of them and also cut down the bolts an inch as well. The finish product is pretty good, just a little space now and for sure a space that I can live with now.. lol
Here are some pictures of my H2 and some before and after on how the center caps fit..
Bill
Before

After

and overall of the truck

 

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Didn't work for you either...did it Bob.....[:@]

 

LOL.....Great Minds Brother

 

After

and overall of the truck

Hey what size tires are you using? i want the same wheels but i dont know if i should do 24's or 22's i just dont want the truck to look ugly with litle wheels