I have to side with Dave & ambear, it is absolutely necessary to have a proportioning valve in this system. These trucks are light in the rear and will try to swap ends on you in a panic stop or inclement weather. 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
