has there been a problem with the rear brakes dragging

What is your question?

ok, we bought this car used and it had sat for a while, the first time we took it for a spin the right rear wheel was got hot and started smoking. I found a leak at the axle seal, I repaired and then replaced the brake pads, parking brake pads and the rotors for both sides. another drive, months later and smoking at the wheel again. broken pad this time, repaired. months later now and the left side, same symptom.