Jeep XJ. Manual — part 412
(9) Install piston spring in retainer and on top of
piston (Fig. 195). Concave side of spring faces down-
ward (toward piston).
(10) Install wave spring in retainer (Fig. 195). Be
sure spring is completely seated in retainer groove.
(11) Install
bottom
pressure
plate
(Fig.
190).
Ridged side of plate faces downward (toward piston)
and flat side toward clutch pack.
Fig. 191 Removing/Installing Input Shaft Snap-Ring
1 – REAR CLUTCH RETAINER
2 – INPUT SHAFT SNAP RING
3 – SNAP RING PLIERS
Fig. 192 Rear Clutch Retainer And Input Shaft Seal
Ring Installation
1 – REAR CLUTCH RETAINER HUB SEAL RING
2 – INPUT SHAFT SEAL RINGS
Fig. 193 Input Shaft Seal Ring Identification
1 – PLASTIC REAR SEAL RING
2 – TEFLON FRONT SEAL RING (SQUEEZE RING TOGETHER
SLIGHTLY BEFORE INSTALLATION FOR BETTER FIT)
Fig. 194 Pressing Input Shaft Into Rear Clutch
Retainer
1 – INPUT SHAFT
2 – REAR CLUTCH RETAINER
3 – PRESS RAM
21 - 184
AUTOMATIC TRANSMISSION—30RH
XJ
DISASSEMBLY AND ASSEMBLY (Continued)
(12) Install first clutch disc in retainer on top of
bottom pressure plate. Then install a clutch plate fol-
lowed by a clutch disc until entire clutch pack is
installed (4 discs and 3 plates are required) (Fig.
190).
(13) Install top pressure plate.
(14) Install selective snap ring. Be sure snap ring
is fully seated in retainer groove.
(15) Using a suitable gauge bar and dial indicator,
measure clutch pack clearance (Fig. 196).
(a) Position gauge bar across the clutch drum
with the dial indicator pointer on the pressure
plate (Fig. 196).
(b) Using two small screw drivers, lift the pres-
sure plate and release it.
(c) Zero the dial indicator.
(d) Lift the pressure plate until it contacts the
snap-ring and record the dial indicator reading.
Clearance should be 0.64 - 1.14 mm (0.025 - 0.045
in.). If clearance is incorrect, steel plates, discs, selec-
tive snap ring and pressure plates may have to be
changed.
The selective snap ring thicknesses are:
• .107–.109 in.
• .098–.100 in.
• .095–.097 in.
• .083–.085 in.
• .076–.078 in.
• .071–.073 in.
• .060–.062 in.
(16) Coat rear clutch thrust washer with petro-
leum jelly and install washer over input shaft and
into clutch retainer (Fig. 197). Use enough petroleum
jelly to hold washer in place.
PLANETARY GEARTRAIN/OUTPUT SHAFT
DISASSEMBLY
(1) Remove planetary snap ring (Fig. 198).
(2) Remove front annulus and planetary assembly
from driving shell (Fig. 198).
(3) Remove snap ring that retains front planetary
gear in annulus gear (Fig. 199).
(4) Remove tabbed thrust washer and tabbed
thrust plate from hub of front annulus (Fig. 200).
(5) Separate front annulus and planetary gears
(Fig. 200).
Fig. 195 Piston Spring/Wave Spring Position
1 – REAR CLUTCH RETAINER
2 – PISTON SPRING
3 – WAVE SPRING
4 – CLUTCH PISTON
Fig. 196 Checking Rear Clutch Pack Clearance
1 – DIAL INDICATOR
2 – PRESSURE PLATE
3 – SNAP RING
4 – STAND
5 – REAR CLUTCH
6 – GAUGE BAR
Fig. 197 Installing Rear Clutch Thrust Washer
1 – REAR CLUTCH RETAINER
2 – REAR CLUTCH THRUST WASHER
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 185
DISASSEMBLY AND ASSEMBLY (Continued)
(6) Remove
front
planetary
gear
front
thrust
washer from annulus gear hub.
(7) Separate and remove driving shell, rear plane-
tary and rear annulus from output shaft (Fig. 201).
(8) Remove front planetary rear thrust washer
from driving shell.
(9) Remove tabbed thrust washers from rear plan-
etary gear.
(10) Remove lock ring that retains sun gear in
driving shell. Then remove sun gear, spacer and
thrust plates.
ASSEMBLY
(1) Lubricate output shaft and planetary compo-
nents with transmission fluid. Use petroleum jelly to
lubricate and hold thrust washers and plates in posi-
tion.
(2) Assemble rear annulus gear and support if dis-
assembled. Be sure support snap ring is seated and
that shoulder-side of support faces rearward (Fig.
202).
(3) Install rear thrust washer on rear planetary
gear. Use enough petroleum jelly to hold washer in
place. Also be sure all four washer tabs are properly
engaged in gear slots.
(4) Install rear annulus over and onto rear plane-
tary gear (Fig. 202).
(5) Install assembled rear planetary and annulus
gear on output shaft (Fig. 203). Verify that assembly
is fully seated on shaft.
(6) Install front thrust washer on rear planetary
gear (Fig. 204). Use enough petroleum jelly to hold
Fig. 198 Front Annulus And Planetary Assembly
Removal
1 – DRIVING SHELL
2 – FRONT ANNULUS AND PLANETARY ASSEMBLY
3 – PLANETARY SNAP RING
Fig. 199 Front Planetary Snap Ring Removal
1 – FRONT ANNULUS GEAR
2 – PLANETARY SNAP RING
Fig. 200 Front Planetary And Annulus Gear
Disassembly
1 – FRONT ANNULUS
2 – THRUST WASHER
3 – THRUST PLATE
4 – FRONT THRUST WASHER
5 – FRONT PLANETARY
Fig. 201 Removing Driving Shell, Rear Planetary
And Rear Annulus
1 – REAR ANNULUS
2 – REAR PLANETARY
3 – DRIVING SHELL
4 – OUTPUT SHAFT
21 - 186
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XJ
DISASSEMBLY AND ASSEMBLY (Continued)
washer on gear. Be sure all four washer tabs are
seated in slots.
(7) Install spacer on sun gear (Fig. 205).
(8) Install thrust plate on sun gear (Fig. 206). Note
that driving shell thrust plates are interchangeable.
Use either plate on sun gear and at front/rear of
shell.
Fig. 202 Assembling Rear Annulus And Planetary
Gear
1 – REAR ANNULUS GEAR
2 – TABBED THRUST WASHER
3 – REAR PLANETARY
Fig. 203 Installing Rear Annulus And Planetary On
Output Shaft
1 – REAR ANNULUS AND PLANETARY GEAR ASSEMBLY
2 – OUTPUT SHAFT
Fig. 204 Installing Rear Planetary Front Thrust
Washer
1 – FRONT TABBED THRUST WASHER
2 – REAR PLANETARY GEAR
Fig. 205 Installing Spacer On Sun Gear
1 – SUN GEAR
2 – SUN GEAR SPACER
XJ
AUTOMATIC TRANSMISSION—30RH
21 - 187
DISASSEMBLY AND ASSEMBLY (Continued)
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