I have a 1958 Apache 3100, fully restored, including a Disc Brake conversion for the front axle. Kept drum brakes on the rear. The master cylinder, etc. is mounted below the driver side floorboard. The problem is not that the truck doesn't stop, when I depress the brake pedal, the pedal does not release all the way, will not disengage the brake light switch, causes the brakes to drag and requires me to have to reach down and lift up on the pedal to get the brakes to release. This is very unsafe and not the way I want to enjoy this truck.
Any ideas as to what the problem is and more important how to correct it? The restoration shop that did the brake install with all the rest of the work installed a really big spring to get the pedal to release, but that ain't helping.
