Anyone ever dicked with North Race Car rear caliper brackets??? Not sure what I have going on.

I ordered the NRC brackets for the 94/95 GT rear brakes. Also ordered the Moser axles for fox length with the brake register for the rotor. It looks like Im about a half inch short from getting the caliper bracket to line up with the rotor. They give you a spacer and some washers but I really need 2 of the spacers to make it close. Im sure its something Im doing wrong.