INSTALLATION
(1) Align brake fluid level switch with mounting
hole on left side of master cylinder brake fluid reser-
voir. Push switch into mounting hole until switch
retaining tabs are expanded on opposite side of res-
ervoir, locking it in place.
(2) Connect brake fluid level switch wiring connec-
tor (Fig. 5).
HYDRAULIC/MECHANICAL
DESCRIPTION - HYDRAULIC DISC BRAKES
Each front and rear hydraulic disc brake assembly
consists of the following components:
• Disc brake caliper (4 piston opposed fixed)
• Brake shoes and linings
• Brake rotor
These components are described in detail below.
The disc brake caliper applies the brake pads to
the brake rotor. This is done using a 4 piston opposed
fixed caliper at each corner of the vehicle (Fig. 6).
Each caliper body is cast aluminum, and is 2 individ-
ual pieces which are held together by 4 bolts (ser-
viced as one assembly). Each caliper half houses 2
pistons; front calipers use 40 mm and 44 mm size
pistons while rear calipers use 38 mm and 42 mm
size pistons. Front caliper pistons are mounted in the
caliper halves so that the smaller size piston is on
the bottom and the larger size piston is on top when
the caliper is mounted on the vehicle. Rear caliper
pistons are mounted in the caliper halves so that the
smaller size piston is on the top and the larger size
piston is on bottom when the caliper is mounted on
the vehicle. The 2 halves of the caliper are hydrauli-
cally connected by means of an external brake tube
on the bottom of the caliper assembly (Fig. 6). Each
caliper half has an individual bleeder screw at the
top of the caliper half and each side must be individ-
ually bled. The caliper bolts directly to the steering
knuckle of the vehicle by means of 2 machined
mounting bosses on the inboard caliper half.
Two brake shoes are used on each brake assembly,
one on each side of the brake rotor. The brake shoe
lining material is a semi-metallic non-asbestos for-
mula. When installing brake shoes, install them in
the caliper with the chamfered end against the direc-
tion the rotor rotates when the vehicle is traveling in
the forward direction. That is, front brake shoes need
to be installed with the chamfered end of the lining
toward the lower end of the caliper; rear brake shoes
need to be installed with chamfered end of the lining
toward the upper end of the caliper. The brake lining
material used has been specifically formulated to
meet the braking requirements of this vehicle. When
brake shoes are replaced, only brake shoes meeting
the Original Equipment Manufacturer (OEM) formu-
lation (such as Mopar
t replacement parts) should be
used to maintain the original braking performance of
this vehicle.
One 14 inch brake rotor is used on each brake
assembly. It mounts on the hub and bearing. The
rotor is made of iron and is vented to help cool it dur-
ing brake applications. Front rotors have a different
offset from rear rotors to help prevent mixing of front
and rear brake rotors.
Fig. 5 Master Cylinder
1 - MASTER CYLINDER
2 - WIRING CONNECTOR
3 - PRIMARY BRAKE TUBE
4 - SECONDARY BRAKE TUBE
5 - BRAKE FLUID LEVEL SWITCH
5 - 10
BRAKES - BASE
ZB
BRAKE FLUID LEVEL SWITCH (Continued)