ok so ive just redid the entire rear end on my stang and while doing so i got 5 lug alloy axles"stock length" because i wanted to do a rear disc brake conversion. so i went to northracecars.com and ordered the sn95 caliper brackets and some calipers but im having a problem with sn95 disc not being shollow enough to sit properly on the axle with out hitting the caliper bracket. Do i exchange the brackets for cobra brackets and get 94 cobra discs since the rotors look shollower?