take a picture of the problem. i'm not sure what you mean by "too close together". it's a solid piece of metal; it didn't change when you took it off. are you trying to bolt the caliper on the wrong side of the mounting bracket?
read this, ignore the retrofitted bracket/rotor stuff. make sure your brackets everything look like this when reassembled.
http://zilvia.net/f/archive-faqs/291...ml#post3305700