RE: Front brakes locking up
I had a similar thing happen on another make of truck. But they all function about the same way. I my case, the fronts started getting hot during stop and go driving. Sometimes, by the time I got home, they would be smoking. On the road, you didn't notice any problem (they stayed cool). Because both fronts were getting hot, I blamed the master cyl. Replacing it was no help. I read somewhere that brake hoses could deteriorate on the inside causing restrictions. Replacment was no help. Finally replaced the calipers and problem went away. The calipers, after more than 100k miles, just woudn't retract like they should even though the sliders were lubed and the pistons seemed to be free and smooth operating.