Hope it works for ya,Puppy! work horse or hot rod,they all gotta stop,and the dual pots that are "readily available",are mostly for the 1/2-1-ton trucks,with a smaller bore than the 1-1/2-2-tons. Pedal goes halfway to the floor,and the brakes work minimally at best. Everything (Brake wise), on that bus has been replaced/tested,and the result is searching for a different M.C./Booster set-up.Live and learn. Wasted time and $$$$!!