Only double wall 4.75mm (3/16 in.) steel brake line
tubing with Al- Rich/ZN-AL alloy coating should be
used for replacement. Care must be taken when
replacing brake tubing; to be sure, use the proper
bending and flaring tools, and procedures to avoid
kinking. Do not route the tubes against sharp edges,
moving components, or into hot areas. All tubes
should be properly attached with the recommended
retaining clips.
PROPORTIONING VALVE
NOTE: The following procedure is for removal and
installation of the proportioning valve(s) on vehicles
without antilock brakes. For the procedure to
remove and install the proportioning valve(s) on
vehicles with antilock brakes refer to ANTILOCK
BRAKE SYSTEM in this group.
REMOVAL
(1) Remove hydraulic brake line (Fig. 80) from pro-
portioning valve controlling the rear wheel of the
vehicle which has premature wheel skid.
(2) Then remove the proportioning valve from the
rear brake line.
INSTALLATION
(1) Install proportioning valve in rear brake line
and hand tighten both tube nuts until they are fully
seated in proportioning valve (Fig. 80).
(2) Tighten both brake line tube nuts at the pro-
portioning valve to a torque of 17 N·m (145 in. lbs.).
(3) Bleed the affected brake line. Refer to BASE
BRAKE BLEEDING in SERVICE PROCEDURES in
this section.
DISC BRAKE CALIPER (FRONT)
NOTE: Before proceeding, review SERVICE WARN-
INGS AND CAUTIONS at the beginning of REMOVAL
AND INSTALLATION in this section.
REMOVAL
(1) Raise vehicle on jackstands or centered on a
hoist. See Hoisting in the Lubrication and Mainte-
nance section of this manual.
(2) Remove front wheel and tire assemblies from
vehicle.
(3) Remove the 2 caliper to steering knuckle guide
pin bolts (Fig. 81).
(4) Remove brake caliper from steering knuckle, by
first rotating bottom end of caliper away from steer-
ing knuckle. Then slide top of caliper down from the
machined abutment on steering knuckle (Fig. 82).
(5) Support caliper from upper control arm to
prevent weight of caliper from being supported
Fig. 80 Non-ABS Brake Proportioning Valve
Location
Fig. 81 Removing Caliper Guide Pin Bolts
Fig. 82 Removing / Installing Brake Caliper
JA BRAKES 5 - 33
REMOVAL AND INSTALLATION (Continued)
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