The Stovebolt Site Forums The Parking Lot Big Bolts Bleeding brakes on 2 ton

My truck is rated at 16000 lb. GVW, has what I think is the original Hydro-vac booster mounted on the outside of the frame rail under the driver seat. Brake line runs from the master to the Hydro-vac, out of the Hydro to a tee then on to front and rear. 1/2 inch steel tubing runs from the engine compartment down to the booster to feed vacuum. At this time I have bypassed the booster due to internal leaking, it did supply some boost when it was still plumbed into the system but I couldn't keep the master full. From what I have seen on the forum it looks like a Bendix booster but I have not tackled that project yet.