Brake Disc Caliper problems of the 2005 Ford E-450

2013 during highway driving the brake caliper on the left rear stuck holding the brake pads against the disk. I noticed it when stopping for gas. As I removed the gas cap I saw considerable smoke rising around that left dual wheel. The wheel and tire was too hot to touch. Smoke got worse and afraid of the heat and proximity of the gas pump I moved the RV a safe distance away. I had the caliper, pads, and disc replaced. Later on a trip after repairs were made I had a tire blow out on left inside wheel. When the tire was removed I saw that it had been damaged from the extreme heat. On the way home from our 2015 christmas trip I felt as though the RV was not accelerating as it should but thought it was the up hill climb of the roadway. Again when I stopped for fuel I saw a wisp of smoke coming from the left rear wheel and the wheel was hot. I have not had the brake system checked out yet. I have a friend with a 2005 RV on a chevy chassis and had the same problem. In that case there had been a recall of the brake system. May not be related but sounds as if it could be the same problem.