If my 2002 Ford Ranger (4WD) sets for a day or two, I can expect, unfortunately, for the brakes to be pretty ineffective for the first stop. Pretty good after a couple of stops. This is far worse if I've driven on wet roads before I parked it. The truck has disc brakes in the front and drums in the rear. I'm thinking the front discs are rusting and the rust gets wiped off after a couple of stops. Is this possible? Any good solution? I never experienced this with my Ranchero.