Dragging brake(s)

I have one or more of my brakes dragging. Symptom: I get no roll back on a slight hill, I can hear is squeaking as I come to a rest without the brakes applied and my brake pedal is rock hard. It comes and goes but luckily it started happening as I pulled in to the garage so her condition is active right now. My question: I have heard people talk about dragging brakes but never really read in to it. What is a common cause and is there usually a common end (front or back)?

Just wanted some input before I get her in the air.

Maybe the brake return springs are worn.

Your rubber brake hose may be plugged or partially so. Fluid can go thru when brakes are applied, but has trouble returning when pedal is lifted, hence the brake stays on.

While the brake is dragging, but not while pushing the pedal, open the bleeder valve and see if it releases some fluid and the brakes. The fluid will come out with some pressure rather than just dribbling out.

I agree with the hoses. When you apply your brake you are pushing preasure through the lines and only the return springs are are pulling the fluid back. Old lines will suck down and not allow the fluid to flow back.

Hoses are cheap replace them. Make sure the wheel cylinder are moving freely. and the shoes are not binding on any thing. Grease the backing plate where the shoes make contact with it.

Hope this helps