My truck is a 54 3600. The m/c is mounted on the frame where the original one was. The proportioning valve is mounted below it. I don't have to pump the brakes so I don't believe a residual valve is needed. The rear tires never lock up because you see no rubber on the road. Nor any rubber from the front tires. I guess I'll have to go walk off 100 yards and see what the stopping distance is at different speeds. I was just looking for some help, sorry to ruffle your feathers.
Sharon
