Jeep Grand Cherokee WK. Manual — part 1396
6. Install Piston Guides 8504 (1) into the input clutch
retainer (13) and onto the input clutch hub (1) to
guide the inner and outer underdrive piston (8)
seals into position.
7. Install the underdrive piston (8) into the input clutch
retainer (13) and over the input clutch hub (1).
8. Install the UD/OD balance piston return spring pack
(9) into the input clutch retainer (13).
9. Install Piston Guide 8252 (1) into the input clutch
retainer (13) to guide the UD/OD balance piston (6)
seal into position inside the underdrive piston (8).
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10. Install the UD/OD balance piston (3) into the input
clutch retainer and the underdrive piston.
11. Using Spring Compressor 8251 (2), compress the
UD/OD return spring pack and secure the piston
in place with the snap-ring.
12. Install the underdrive clutch pack (11) into the
input clutch retainer.
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13. Install the UD/OD reaction plate lower flat snap-ring (16). The correct snap-ring can be identified by the two
tabbed ears.
14. Install the UD/OD reaction plate (15) into the input clutch retainer. The reaction plate is to be installed with the
big step down.
15. Install the UD/OD reaction plate upper tapered snap-ring (14) with tapered side up.
Input Clutch Assembly - Part 2
1 - THRUST BEARING NUMBER 3
10 - SNAP-RING (SELECT)
2 - OD HUB/SHAFT
11 - PLATE
3 - SNAP-RING (WAVE)
12 - DISC
4 - REV/OD REACTION PLATE
13 - OD CLUTCH
5 - THRUST BEARING NUMBER 4
14 - SNAP-RING (TAPERED)
6 - SNAP-RING (FLAT)
15 - UD/OD REACTION PLATE
7 - REVERSE HUB/SHAFT
16 - SNAP-RING (FLAT)
8 - REVERSE CLUTCH
17 - UD HUB/SHAFT
9 - REVERSE REACTION PLATE
18 - THRUST BEARING NUMBER 2
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16. Install the input clutch assembly into Input Clutch
Pressure Fixture 8260 (2).
17. Mount a dial indicator to the assembly, push down
on the clutch discs and zero the indicator against
the underdrive clutch discs. Apply 20 psi of air
pressure to the underdrive clutch and record the
dial indicator reading. Measure and record UD
clutch pack measurement in four (4) places, 90°
apart. Take average of four measurements and
compare with UD clutch pack clearance specifica-
tion. The correct clutch clearance is 0.84-1.54 mm
(0.033-0.061 in.). The reaction plate is not selec-
tive. If the clutch clearance is not within specifica-
tion, replace the reaction plate along with all the
friction and steel discs.
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