Went out this evening for a bit in the Disco, and at one point had to get on the brake fairly hard as a car cut in front. Later after stopping to get something at a store, I felt the truck a bit sluggish like an emergency brake was on as driving home, but since it clearly wasn't I kept driving. After stopping at a red light, I heard a noise come from the wheel/brake area (like overcoming a brake on), so I pulled over - and noticed a locked up right front brake, and smoke coming from it actually from driving with it locked/seized up.

Any idea what happened here, and if there is something other than new pads to worry about in the morning ??

thanks,