If it is the ram type like the one used on a 55-57 passenger car (and Fords) they work fine for parking and low speed but are very skittery on the road. It does not give you a good feel in straight ahead driving even with reduced pump pressure. I think the problem is that it reacts too fast for the straight axle geometry. Fred


1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine