Tonight I am supposed to go help my brother figure out how to replace his calipers on his 95GT with calipers off of a 99/newer Mustang. Evidently the newer ones have 2 pistons as opposed to one or something. Just wondering if anyone could give me a heads up as to what exactly is invloved in this sort of project, like if I will have to grind a notch out of the spindles to accomodate the larger size calipers or something. Thanks for any help.