Master Cylinder - Dual Diagonal System

The Delco Dual Diagonal Master Cylinder is designed for use in a diagonal split system. The left front and right rear brakes are serviced by one piston and the right front and left rear are served by the other.

It incorporates the functions of a standard dual master cylinder with the proportioning valves and warning switch built in. In addition, a quick take-up feature is incorporated which provides a large volume of fluid to the calipers and wheel cylinders at low pressure with initial brake application. The low pressure fluid quickly provides the displacement requirements created by the seal retracting pistons into the front calipers and spring retraction of the rear drum brake shoes.