The brakes on my dart, has non power disc brakes from a 73 dart, are getting tight and draging after about 4 miles of driving. The brake pedal has pretty much no travel when you push on it, it might move 1/4" seems like its pumped up hard all of the time. After the car sits a while they seem to work fine. I can jack the wheels up off the ground and they spin easy. I can push the brake pedal and release it and the wheels are still not tight. But if i do this after a few miles of driving i cant hardly spin the wheels with my hands, it takes a lot of muscle to make them spin and i will not even drift down my driveway after driving a few miles,
The calipers seem to be ok but it is like something is holding pressure on then when they warm up. Could the mastercylinder go bad and do this?