A couple years ago i bought all new brake hoses for my coe off ebay. I was putting the truck away for the winter and the brakes where sticking on the back axle. So i just got to check it out. I was looking at the brake hose and wondering if it could be swelled shut. I noticed that the hose was like a wet noodle and and it looked like it was sweating. It had a bunch of little dots like the brake fluid was weeping through the hose. I looked at the front and 1 of those was the same. I changed them all. The hoses said made in argentina also said dot. Probably some inferior hose. Im just glad they didn’t blow out . Any how I replaced the hoses and the brakes don’t seem to be sticking now. Hopefully that was the problem time will tell