Dodge ram truck 3500 1996 Service Manual page 204

5 - 20 BRAKES
B R
REMOVAL AND INSTALLATION (Continued)
Fig. 28 Master Cylinder/Combination Valve Bracket
Mounting
MASTER
ABS VALVE SECONDARY LINE J9405-72
Fig. 29 Master Cylinder & Valve brake line
Connections
POWER BRAKE BOOSTER
The standard and high output boosters are identi­
fied by code letters on the forward face of the booster.
Booster I.D. code letters are:
• 1/2 ton booster code is ZK
• 3/4 and 1 ton booster code is ZL
R E M O V A L
(1) Disconnect harness wires from differential
switch on combination valve and from RWAL valve.
(2) Disconnect brake line from combination valve
to front brakes, or ABS valve. Then disconnect brake
line from RWAL valve to rear brakes.
(3) Remove nuts attaching master cylinder and
valves to power brake booster studs. Then remove
master cylinder and valves as assembly (Fig. 30).
Fig. 30 Master Cylinder & Valve Assembly
(4) Disconnect vacuum hose at booster check valve.
(5) Remove knee bolster for access to brake pedal.
(6) Remove clip and washer securing booster push
rod to brake pedal and slid rod off pedal (Fig. 31).
BOOSTER WASHER CUP
Fig. 31 Booster Push Rod
(7) Remove nuts attaching booster mounting studs
to dash panel and pedal mounting bracket and
remove booster (Fig. 32).