Replaced front brake lines, front calipers, rear pistons and all wheel bearings, rotors and pads, and booster on my 1995 Blazer. Still everything sticks for some reason. Anything else anyone can think of? Master cylinder is about the only thing I haven't touched, but it's not leaking, so why bother. I thought dirt might be the culprit in the fluid, but that didn't pan out either.