Front Disc Brakes

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The front brake assembly used on this vehicle consists of the following components:

Disc Brake Caliper
Brake Shoes (Pads/Linings)
Caliper Abutment Rail Shims
Brake Rotor

The floating double pin single piston calipers used on this vehicle are mounted directly to the steering knuckles and use no adapter. See Fig 1. The caliper is mounted to the steering knuckle using bushings, sleeves and 2 thru-bolts which thread directly into the knuckle. See Fig 2.

Fig 1: Identifying Front Disc Brake Caliper Assembly

Courtesy of CHRYSLER CORP.

Fig 2: Mounting Disc Brake Caliper

Courtesy of CHRYSLER CORP.

The caliper is a one piece casting with the inboard side containing a single piston cylinder bore. The front disc brake caliper phenolic piston is 2.36" (60 mm) in diameter.

There are 2 brake shoes (pads) mounted to the brake caliper. One brake shoe mounts on each side of a brake rotor. The brake shoe lining material used has been specifically formulated to meet the braking requirements of the vehicle. An audible wear indicator is mounted on the outboard brake shoe.

Rail shims are mounted above and below the brake pads (when installed) on the machined caliper abutment rails of the knuckle.

The brake rotor is mounted on the hub and bearing. The rotor is made of iron and is vented to help cool it during brake applications.

Vehicles equipped with standard 4-wheel-disc brake utilize an inverted-hat style rotor. This rotor is externally vented meaning the inner most diameter of the braking disc vents to the front (or face) of the rotor.

Although there are 2 different style brake rotors depending on brake packages, they are serviced in the same manner.