I want to put a set of 16. 5" humvee wheels and tires on my 06 mega. I tried it out without spacers last year, but they hit the calipers. I would like to try it again with some 2. 5" spacers. Can I grind the calipers to make it fit, I have done that on chevy D60 fronts for a rock crawler to fit 15" wheels before with no problems, but this is my tow truck. The other thing I was thinking was to find some low profile calipers. Do they exist? The price of the wheel and tires is just so good, I would like to take advantage of it.