Jeep XJ. Manual — part 408
(30) Using snap-ring plier, pull rear band anchor
pin (located on the servo side of the rear support)
from transmission case.
(31) Remove rear band and link from transmission
(Fig. 138).
(32) Separate link from rear band (Fig. 139).
(33) If necessary remove front and rear band servo
levers. All transmission components can be serviced
without removing the levers.
(a) Using a 1/4 inch drive extension remove
front band reaction pin access plug (Fig. 140).
(b) Remove front band reaction pin with pencil
magnet. Pin is accessible from converter housing
side of case (Fig. 141).
(c) Remove front band lever (Fig. 142).
(d) Using snap-ring plier, pull rear band lever
pivot from transmission case (Fig. 143).
(e) Separate rear band servo lever from trans-
mission.
Fig. 136 Rear Support
1 – OIL PAN FACE
2 – TRANSMISSION HOUSING
3 – REAR SUPPORT
Fig. 137 Overrunning Clutch Cam Bolt Locations
1 – OVERRUNNING CLUTCH CAM BOLTS
Fig. 138 Rear Band and Link
1 – LINK
2 – REAR BAND
Fig. 139 Rear Band and Link
1 – NOTCHED SIDE OF LINK GOES TOWARD BAND
Fig. 140 Front Band Reaction Pin Access Plug
1 – 1/4
88
DRIVE EXTENSION
2 – FRONT BAND REACTION PIN ACCESS PLUG
21 - 168
AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(34) Compress front servo rod guide about 1/8 in.
with large C-clamp and Tool C-4470, or Spring Com-
pressor Tool C-3422-B (Fig. 144).
(35) Remove front servo rod guide snap ring (Fig.
144). Exercise caution when removing snap
ring. Servo bore can be scratched or nicked if
care is not exercised.
(36) Remove compressor tools and remove front
servo rod guide, spring and servo piston.
(37) Compress rear servo spring retainer about
1/16 in. with C-clamp and Tool C-4470 or SP-5560
(Fig. 145). Valve Spring Compressor C-3422-B can
also be used to compress spring retainer.
(38) Remove rear servo spring retainer snap ring.
Then remove compressor tools and remove rear servo
spring and piston.
ASSEMBLY
(1) Install rear servo piston, spring and spring
retainer. Compress rear servo spring and retainer
with Compressor Tool C-3422-B (Fig. 145) or a large
C-clamp.
(2) Install front servo piston, spring, and rod
guide. Compress front servo rod guide with Valve
Spring Compressor C-3422-B and install servo snap
ring (Fig. 144).
(3) Assemble link bar to band. Notched side of link
toward band (Fig. 143).
(4) Insert rear band through pan opening in trans-
mission case.
(5) Insert hook on band onto adjuster lever.
(6) Align holes in link bar with hole in transmis-
sion case outboard of rear support opening (Fig. 142).
(7) Insert anchor pin into case through link bar.
Fig. 141 Front Band Reaction Pin
1 – PENCIL MAGNET
2 – FRONT BAND REACTION PIN
Fig. 142 Front Band Lever
1 – FRONT BAND LEVER
Fig. 143 Rear Band Servo Lever Pin
1 – PARALLEL JAW SNAP RING PLIERS
2 – REAR BAND LEVER PIVOT PIN
Fig. 144 Compressing Front Servo
1 – SPRING COMPRESSOR TOOL C-3422–B
2 – ROD GUIDE SNAP RING
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AUTOMATIC TRANSMISSION—30RH
21 - 169
DISASSEMBLY AND ASSEMBLY (Continued)
(8) Examine bolt holes in overrunning clutch cam.
Note that one hole is not threaded (Fig. 146). This
hole must align with blank area in clutch cam bolt
circle.
NOTE: The bolt holes in cam are slightly counter-
sunk on one side. This side of cam faces rearward
(toward rear support).
(9) Lubricate overrunning clutch rollers, springs
and cam with Mopar
t ATF Plus 3, type 7176, trans-
mission fluid.
(10) Position overrunning clutch on a clean, flat
work surface with countersunk holes downward.
(11) Place rear of low-reverse drum over overrun-
ning clutch and align clutch rollers to hub of drum.
(12) While
slightly
pivoting
low-reverse
drum,
push hub of drum into overrunning clutch. Verify
that countersunk holes are facing outward. Cam
should be able to rotate in the drum clockwise
only.
(13) Insert a suitable awl through the rear support
mounting hole closest to the pan sealing face. The
awl should be next to the wide space area at the
back of transmission case.
(14) Insert low-reverse drum and overrunning
clutch into front of transmission case and into rear
band.
(15) Insert awl tip into the threaded hole next to
the non-threaded hole in the overrunning clutch cam.
Verify that non-threaded hole is aligned with wide
space area on transmission case.
(16) Push low-reverse drum rearward to close gap
between cam and case.
(17) Install overrunning clutch cam bolts. Clutch
cam bolts are shorter than rear support bolts.
Tighten cam bolts to 17 N·m (150 in. lbs. or 13 ft.
lbs.) torque.
(18) Hold low-reverse drum in position so rear sup-
port will not push it out of overrunning clutch.
(19) Insert rear support into opening at rear of
transmission case (Fig. 147).
(20) Align support with the embossed arrow in the
direction of the pan face.
Fig. 147 Rear Support
1 – OIL PAN FACE
2 – TRANSMISSION HOUSING
3 – REAR SUPPORT
Fig. 145 Compressing Rear Servo Spring
1 – LARGE C-CLAMP
2 – TOOL C-4470 OR SP5560
3 – SERVO SPRING RETAINER
Fig. 146 Clutch Cam Alignment
1 – TRANSMISSION CASE
2 – OVERRUNNING CLUTCH
3 – NON-THREADER HOLE
4 – WIDE SPACE AREA
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AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(21) Install and tighten rear support bolts to 17
N·m (150 in. lbs.) torque.
(22) Install snap ring to retain low-reverse drum
to hub of rear support (Fig. 148).
(23) Lubricate output shaft, rear support bore and
low-reverse drum hub with transmission fluid.
(24) Install assembled output shaft and planetary
geartrain in case (Fig. 149).
(25) Align drive lugs on rear planetary gear with
slots in low-reverse drum (Fig. 149). Then seat plan-
etary assembly in drum.
(26) Install governor on output shaft.
(27) Turn and secure transmission so that front
opening is upward.
(28) Assemble front and rear clutches together.
(a) Check input shaft seal rings (Fig. 150). Verify
that diagonal-cut ends of Teflon
y seal ring are
properly joined and ends of metal ring are correctly
hooked together. Also be sure rings are installed in
sequence shown.
(b) Align teeth on clutch discs in line.
(c) Insert input shaft on rear clutch into center
of front clutch (Fig. 151).
(d) Engage teeth on rear clutch hub into teeth on
clutch (Fig. 153). Rotate front clutch retainer back
and forth until completely seated on rear clutch.
Fig. 149 Output Shaft And Planetary Geartrain
1 – SLOTS
2 – LOW-REVERSE DRUM
3 – PLANETARY GEARTRAIN
4 – TRANSMISSION HOUSING
5 – LUGS
Fig. 148 Low-Reverse Drum Snap Ring
1 – REAR BAND
2 – REAR SUPPORT HUB
3 – LOW-REVERSE DRUM SNAP RING
4 – LOW-REVERSE DRUM
Fig. 150 Input Shaft Seal Ring Location
1 – INPUT SHAFT
2 – TEFLON SEAL RING
3 – METAL SEAL RING
4 – REAR CLUTCH RETAINER
Fig. 151 Front and Rear Clutches
1 – REAR CLUTCH
2 – INPUT SHAFT
3 – FRONT CLUTCH
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AUTOMATIC TRANSMISSION—30RH
21 - 171
DISASSEMBLY AND ASSEMBLY (Continued)
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