disc brake conversion

[NC89GT]

I have an 89 mustang gt that i swapped the rear from drum to disc brakes. The rear brakes seem to constantly be dragging. I have googled to try and find if anyone else had the same issue. I bought new booster new master cylinder and the brakes seem to work fine. except they constantly drag on the rear. I have and adjustable proportioning valve in place. I believe that i need a residual pressure valve to stop this? anyone have any knowledge on this issue?

[jktruckin06]

i really know nothing about this other than what i've been reading in preparation to do mine... don't you have to gut the factory proportioning valve as well? just a thought

[NC89GT]

its not factory. its a ford racing one. unless that is considered factory

[jktruckin06]

http://home.comcast.net/~mjbobbitt/mustang/page11.html

i'm reading this now to see what i need to do for my manual setup. i don't get it all lol