I'm seriously confused after reading up all of the conversion articles, because I am using the stock GT/LX length axles and the north racecars brackets so I could use the common Mustang replica wheels in 4 lug. Now, I'm kind of wanting to do the Cobra 13" front brakes, and I need to convert to 5 lug. No problem on the fronts, but the rears have me confused. Do I have to buy new rear calipers and brackets again? Isn't there a 5 lug rotor that I can just swap on using my original 93 rear brakes while using the north racecars brackets? Thanks for any help, I'm just not seeing where this was discussed with success.