Ford Repair: 89 mustang brakes rattle, mustang saleen, bolt pattern

Question
I have an 89 Mustang Saleen, 5.0. Disc brakes all four corners, with five bolt pattern. It is only driven a couple months a year, about 500 miles per year. Last year after storage in my garage, I took it out for the first time. The front left disc caliper froze up and got real hot. Rust must have built up in the calipers over the winter storage. So I completely rebuilt the complete brake system with the following:
1. new front disc's and bearings
2. new front calipers
3. new front pads
4. rebuilt rear calipers
5. new rear pads
6. complete flush of brake fuild in system with new dot 3

My problem is that the front pads and calipers rattle around over the new disc's while driving over bumps in the road. The brakes work great, but are a little stiff without much brake peddle feel. It seams as if the hydrolic cylinders in the new front calipers are backing off too much after you take your foot off the brake peddle, causing the pads and calipers to rattle. If I just hold my foot slightly on the brake peddle their is no noise and no rattle. After a park the car I can push on the front brake pads and calipers with my hands through the front wheels and get the pads and calipers to rattle back and forth. My second guss is that the two caliper mounting bolts on each side are not a very tight fit inside the clipers. I have tryed both the new bolts and the old ones and a second set of front pads to fix this problem with no luck. Since I gave my old calipers up at the auto store I cannot tell if the new ones have larger thru holes for mounting with the two bolts. It was very hard to get all the correct parts at the auto parts store when I got them. I had to bring in all of the parts so they could see just what Saleen did in the conversion. The parts store said that this front brake set up was off a Ford Lincoln, and all of the new parts that I got looked to be the same. It could be my first guss, that the hydrolics are backing off too much in the front calipers causing this rattle. But what would cause this? Or it could be my second guss, and that the mounting bolts are too small in the caliper mounting holes, but all of the mounting bolts are the same size, old and new. Maybe Saleen had some type of sleeve inside the mounting bolt holes on my old calipers? I just can't go out and look at other Mustangs to see the differences because of the Saleen conversion.
Do you have any ideas?
Thanks,
Ray Goody

Answer
Hello and thanks for the question...I'll try to help.
First off....IF the brake systems were the same between a Lincoln and a Mustang..in the parts book it would be listed as "brakes for Mustang and Lincoln", they wouldn't be listed seperately. Tell them to try again and get another set from them, or some one who knows what they are doing.
I would also suggest that you call Saleen and ask them about their brake conversions on a business day. See if they do change over the clipers and need to be replaced with theirs or an equal part.
Erik