Dodge Dakota (R1). Manual — part 713
OVERDRIVE CLUTCH
The overdrive clutch is hydraulically applied in
third (direct) and fourth gears by pressurized fluid
against the overdrive/reverse piston. When the over-
drive clutch is applied, the overdrive hub drives the
reverse carrier/input annulus assembly.
REVERSE CLUTCH
The reverse clutch is hydraulically applied in
reverse gear by pressurized fluid against the over-
drive/reverse piston. When the reverse clutch is
applied, the reaction annulus gear is driven.
DISASSEMBLY
(1) Remove the reverse reaction plate selective
snap-ring from the input clutch retainer (Fig. 68).
(2) Remove the reverse reaction plate from the
input clutch retainer.
(3) Remove the reverse hub and reverse clutch
pack from the input clutch retainer.
(4) Remove the number 4 bearing from the over-
drive hub.
(5) Remove the overdrive hub from the input
clutch retainer (Fig. 68).
Fig. 67 Input Clutch Assembly - Part 2
1 - 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 - 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 - BEARING NUMBER 2
21 - 496
AUTOMATIC TRANSMISSION - 45RFE
AN
INPUT CLUTCH ASSEMBLY (Continued)
(6) Remove the number 3 bearing from the under-
drive hub.
(7) Remove the OD/reverse reaction plate snap-
ring from the input clutch retainer.
(8) Remove the underdrive hub, overdrive clutch,
and overdrive reaction plate from the input clutch
retainer (Fig. 68).
NOTE: The overdrive friction discs and steel discs
are thicker than the matching components in the
underdrive and reverse clutches.
(9) Remove the number 2 bearing from the input
clutch hub.
(10) Remove the overdrive clutch wave snap-ring
from the input clutch retainer.
(11) Remove the UD/OD reaction plate tapered
snap-ring from the input clutch retainer.2
(12) Remove the UD/OD reaction plate from the
input clutch retainer.
(13) Remove the UD/OD reaction plate flat snap-
ring from the input clutch retainer (Fig. 68).
Fig. 68 Input Clutch Assembly - Part 2
1 - 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 - 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 - BEARING NUMBER 2
AN
AUTOMATIC TRANSMISSION - 45RFE
21 - 497
INPUT CLUTCH ASSEMBLY (Continued)
(14) Remove the underdrive clutch pack from the
input clutch retainer (Fig. 70).
(15) Using Spring Compressor 8251, compress the
UD/OD balance piston and remove the snap-ring
from the input clutch hub (Fig. 69).
(16) Remove the UD/OD balance piston and piston
return spring from the input clutch retainer (Fig. 70).
(17) Remove the underdrive piston from the input
clutch retainer (Fig. 70).
NOTE: Both the UD/OD balance piston and the
underdrive piston have seals molded onto them. If
the seal is damaged, do not attempt to install a new
seal onto the piston. The piston/seal must be
replaced as an assembly.
(18) Remove the input clutch retainer tapered
snap-ring.
(19) Separate input clutch retainer from input
clutch hub.
(20) Separate OD/reverse piston from input clutch
hub retainer (Fig. 70).
(21) Remove all seals and o-rings from the input
shaft and input hub. The o-rings on the input hub
are color coded. Be sure to make note of which o-ring
belongs in which location.
ASSEMBLY
(1) Install all new seals and o-rings onto the input
shaft and input hub. The o-rings on the input hub
are color coded. Be sure to install the correct o-ring
in the correct location.
(2) Check the transmission lubrication check valve
located in the input shaft using shop air. The valve
should only allow air flow in one direction. If the
valve allows no air flow, or air flow in both direc-
tions, the valve will need to be replaced.
(3) Lubricate all seals with Mopar® ATF +4, type
9602, prior to installation.
(4) Assemble the OD/reverse piston onto the input
clutch hub (Fig. 71).
(5) Assemble the input clutch retainer onto the
input clutch hub.
(6) Install the input clutch retainer tapered snap-
ring with tapered side up onto the input clutch hub.
Fig. 69 Compressing UD/OD Balance Piston Using
Tool 8251
1 - PRESS
2 - TOOL 8251
3 - BALANCE PISTON
21 - 498
AUTOMATIC TRANSMISSION - 45RFE
AN
INPUT CLUTCH ASSEMBLY (Continued)
Fig. 70 Input Clutch Assembly - Part 1
1 - INPUT CLUTCH HUB
11 - UD CLUTCH
2 - O-RING SEALS
12 - PLATE
3 - SEAL
13 - CLUTCH RETAINER
4 - SNAP-RING
14 - SEAL
5 - SNAP-RING
15 - OD/REV PISTON
6 - UD BALANCE PISTON
16 - BELLEVILLE SPRING
7 - SNAP-RING
17 - SNAP-RING
8 - UD PISTON
18 - SEAL RINGS
9 - SPRING
19 - INPUT SHAFT
10 - DISC
20 - LUBRICATION CHECK VALVE AND SNAP-RING
AN
AUTOMATIC TRANSMISSION - 45RFE
21 - 499
INPUT CLUTCH ASSEMBLY (Continued)
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