Brake pedal stuck to floor after going down steep grade. Mechanic fines nothing. on 1996 Chevrolet S10

Couldn't move the pedal off the floor. With a high pitched whine, managed to force the truck off the road by

by in Pittsburgh, PA on October 22, 2012
1 answer
ANSWER by , October 22, 2012
sounds like a bad pedal assm but need more info to assist