Caprice RWD V8-305 5.0L (1992)
If the front (primary) brake system fails, initial brake pedal movement will cause the unrestricted primary piston to bottom out against the secondary
piston. Continued downward movement of the brake pedal moves the secondary piston to displace hydraulic fluid in the rear brake system to actuate the
rear brakes.
Fig. 3 Diagonally Split Brake System
Diagonally Split System
This system operates on the same principle as conventional front and rear split systems, using primary and secondary master cylinders which move
simultaneously to exert hydraulic pressure on their respective systems. The hydraulic brake lines on this system, however, have been diagonally split
front to rear (left front to right rear and right front to left rear) in place of separate lines to the front and rear wheels, Fig. 3.
In the event of a system failure, the remaining non-failed system will do all the braking on one front wheel and one rear wheel, thus maintaining 50%
of the total braking force.
