Jeep 1996 Grand Cherokee Service Manual - page 1218
before
final
assembly,
install
cam
only
as
described
in
Transmission
Assembly
And
Adjustment section. Clutch cam must be prop-
erly indexed in case to fit and operate properly.
FRONT SERVO PISTON
DISASSEMBLE
(1) Remove seal ring from rod guide (Fig. 193).
(2) Remove small snap ring from servo piston rod.
Then remove piston rod, spring and washer from pis-
ton.
(3) Remove and discard servo component O-ring
and seal rings.
ASSEMBLE
Clean and inspect front servo components.
(1) Lubricate new O-ring and seal rings with
petroleum jelly and install them on piston, guide and
rod.
(2) Install rod in piston. Install spring and washer on
rod. Compress spring and install snap ring (Fig. 193).
(3) Set servo components aside for installation dur-
ing transmission reassembly.
REAR SERVO PISTON
DISASSEMBLE
(1) Remove small snap ring and remove plug and
spring from servo piston (Fig. 194).
(2) Remove and discard servo piston seal ring.
(3) Lubricate piston and guide seals with petro-
leum jelly. Lubricate other servo parts with Mopar
ATF Plus transmission fluid.
ASSEMBLE
(1) Install new seal ring on servo piston.
(2) Assemble piston, plug, spring and new snap
ring.
(3) Lubricate piston seal lip with petroleum jelly.
(4) Set servo components aside for assembly instal-
lation.
OIL PUMP AND REACTION SHAFT SUPPORT
DISASSEMBLE
(1) Remove seal ring from housing and reaction
shaft support (Fig. 195).
(2) Mark pump housing and support assembly for
alignment reference.
(3) Loosen bolts that attach pump body to support
(Fig. 196).
Fig. 193 Front Servo
Fig. 194 Rear Servo Components
Fig. 195 Removing Pump Seal Ring
Fig. 196 Loosening Pump Support Bolts
ZJ
TRANSMISSION AND TRANSFER CASE
21 - 79
DISASSEMBLY AND ASSEMBLY (Continued)