A Muscle Car Research Exclusive!
Muscle Car Research is proud to offer this combination rebuild kit for the 1967 - 1974 AMC Wagner power front disc/rear drum brake pressure differential valve, part number 318 7725. Our kit (a combination of our pressure differential valve and switch repair kits) contains all of the parts needed to rebuild your leaky valve and return it to "like new" operating condition, including:
- Copper crush washers
- Piston load springs
- Switch actuating plunger
- Switch actuating spring
The brass contact is available separately. The o-rings are molded from a 70 durometer ethylene propylene diene monomer (EPDM) rubber compound that is fully compatible with automobile brake fluid. The piston load springs are made from type 302 stainless steel and feature squared and ground ends. The switch actuating plunger has been custom made in natural-colored nylon 6/6 by reverse-engineering an original plunger. The switch actuating spring has been custom made from type 302 stainless steel by reverse engineering an original spring. All parts are made right here in the USA!