this master cylinder situation is really weird. do all cars with rear disc brakes have the flange on the master cylinder opposite the base model cars?? when i swapped teg discs on my 89 crx, the teg master cylinder went right on. now that i am swapping my 91 dx hatch, the flange is opposite. i pulled a full booster and master from a 90 si hatch, same thing. help? thanks!