Without Antilock Brakes

Fig 4 Type 3 Master Cylinder. Less ABS:

Non ABS Master Cylinder Primary And Secondary Ports:

GENERAL INFORMATION
This vehicle is available with three different master cylinders. The vehicle uses screw-in proportioning valves at the master cylinder instead of the combination valve used in prior designs. With this new design, the chassis brake tubes connect directly from the master cylinder to the brake flex hose. A standard compensating port designis used. The master cylinder has a four outlet design with two screw-in proportioning valves attached directly to the inboard side of the master cylinder housing. The ABS master cylinders are a two outlet design with the screw-in proportioning valves attached directly to the HCU. Vehicles equipped with rear drum brakes use a master cylinder with a 21 mm bore diameter, while vehicles equipped with rear disc brake use a 7/8" bore master cylinder.

DESIGN
The brake system master cylinder assembly consists of the following components. The body of the master cylinder is an anodized aluminum casting. It has a machined bore to accept the master cylinder piston and threaded ports with seats for hydraulic brake line connections. The brake fluid reservoir of the master cylinder assembly is made of a see through polypropylene type plastic. The primary outlet ports supply hydraulic pressure to the left front and right rear brakes. The secondary outlet ports supply hydraulic pressure to the right front and left rear brakes.