HELP!! Front brakes holding pressure

[82 GT]

I've recently upgraded to a 5bolt/4whl disc set up and I'm having problems with the front calipers holding pressure and dragging the front brakes. After the car sits for awhile, everything releases but starts up again after a short drive. We used calipers/spindles/rotors from an 03 GT donor. We upgraded the M/C but didn't replace the booster. When the problem first surfaced, we upgraded the prop valve to a SSBC (A0730) and ran adjustments to both extremes...still dragging up front. Has anyone ever experienced this problem and if so, how did you solve it?

[Mustang-junky]

How are your brake hoses? They can collapse internally and hold pressure in.

Jess

[82 GT]

Brake lines are new.....both left and right sides are equal with respect to drag and the time it takes for them to release.....

[Merle]

If the brake hoses are good, maybe try disconnecting the brake pedal from the MC pushrod. Perhaps the length is not correct. If the brakes free up with the pedal disconnected from the pushrod, there's your answer.

[82 GT]

Merle, THANK YOU! That was it! I never even thought about adjustment on the actuator rod in the Booster itself. We made the change and everythings working perfectly!

[Merle]

Your welcome. Glad it worked out for you.

[R825OH]

Quick Expert advice!!!!Only on F.E.P.!!!!!!

[86foxvert]

Quick Expert advice!!!!Only on F.E.P.!!!!!!

Ditto and great to learn through othersthis site rocks