Dodge Durango (DN). Manual — part 59
(d) Position the dial indicator plunger against a
flat spot on the oil pump and zero the dial indica-
tor.
(e) Move input shaft in and out and record read-
ing. End play should be 0.56 - 2.31 mm (0.022 -
0.091 in.). Adjust as necessary.
(30) Install accumulator piston and inner and
outer springs (Fig. 185).
(31) Verify that valve body solenoid harness is
secured in 3-4 accumulator housing cover plate.
(32) Install valve body as follows:
(a) Align and carefully insert park rod into pawl.
Rod will make click noise as it enters pawl. Move
rod slightly to check engagement.
(b) Align and seat valve body on case. Be sure
manual lever shaft and overdrive connector are
fully seated in case. Also be sure valve body wiring
is not pinched or kinked.
(c) Install and start all valve body attaching
bolts by hand. Then tighten bolts evenly, in a diag-
onal pattern to 12 N·m (105 in. lbs.) torque. Do
not overtighten valve body bolts. This could
result in distortion and cross leakage after
installation..
CAUTION: It is possible for the park rod to displace
into a cavity just above the pawl sprag during
installation. Make sure the rod is actually engaged
in the pawl and has not displaced into the cavity.
(33) Install new filter on valve body. Tighten filter
screws to 4 N·m (35 in. lbs.).
(34) Adjust front and rear bands.
(35) Install seal on park/neutral position switch.
Then install and tighten switch to 34 N·m (25 ft.
lbs.).
(36) Install magnet in oil pan. Magnet goes on
small protrusion at corner of pan.
(37) Position new oil pan gasket on case and
install oil pan. Tighten pan bolts to 17 N·m (13 ft.
lbs.).
(38) Install new valve body manual shaft seal in
case (Fig. 186). Lubricate seal lip and manual shaft
with petroleum jelly. Start seal over shaft and into
case. Seat seal with 15/16 inch, deep well socket.
(39) Install throttle valve and shift selector levers
on valve body manual lever shaft.
OVERRUNNING CLUTCH CAM/OVERDRIVE
PISTON RETAINER
DISASSEMBLY
NOTE: TO SERVICE THE OVERRUNNING CLUTCH
CAM AND THE OVERDRIVE PISTON RETAINER,
THE TRANSMISSION GEARTRAIN AND OVERDRIVE
UNIT MUST BE REMOVED FROM THE TRANSMIS-
SION.
Fig. 184 Checking Input Shaft End Play
1 – TOOL 8266-8
2 – TOOL 8266-6
3 – TOOL C-3339
Fig. 185 Accumulator Piston And Springs
1 – GOVERNOR PRESSURE SENSOR
2 – VALVE BODY
3 – PARK ROD
4 – ACCUMULATOR PISTON
5 – GOVERNOR PRESSURE SOLENOID
21 - 102
42/44RE AUTOMATIC TRANSMISSION
DN
DISASSEMBLY AND ASSEMBLY (Continued)
(1) Remove the overdrive piston (Fig. 187).
(2) Remove the overdrive piston retainer bolts.
(3) Remove overdrive piston retainer.
(4) Remove case gasket.
(5) Mark the position of the overrunning clutch
cam in the case (Fig. 188).
(6) Remove the overrunning clutch cam bolts.
(7) Remove the overrunning clutch cam.
ASSEMBLY
(1) Examine bolt holes in overrunning clutch cam.
Note that one hole is not threaded (Fig. 189). This
hole must align with blank area in clutch cam bolt
circle (Fig. 190). Mark hole location on clutch cam
and blank area in case with grease pencil, paint
stripe, or scribe mark for assembly reference.
(2) Mark location of non-threaded hole in clutch
cam and blank area in bolt circle with grease pencil.
(3) Align and install overrunning clutch and cam
in case (Fig. 191). Be sure cam is correctly
installed. Bolt holes in cam are slightly counter-
sunk on one side. Be sure this side of cam faces
rearward (toward piston retainer).
(4) Verify that non-threaded hole in clutch cam is
properly aligned. Check alignment by threading a
bolt into each bolt hole. Adjust clutch cam position if
necessary.
(5) Install and tighten overrunning clutch cam
bolts to 17 N·m (13 ft. lbs.) torque. Note that clutch
cam bolts are shorter than piston retainer bolts.
Fig. 186 Installing Manual Lever Shaft Seal
1 – 15/16
88
SOCKET
2 – SEAL
Fig. 187 Overdrive Piston Removal
1 – OVERDRIVE CLUTCH PISTON
2 – INTERMEDIATE SHAFT
3 – SELECTIVE SPACER
4 – PISTON RETAINER
Fig. 188 Overrunning Clutch Cam Removal
1 – ALIGN MARKS IDENTIFYING NON-THREADED HOLE IN
CAM AND CASE
2 – OVERRUNNING CLUTCH ASSEMBLY
Fig. 189 Location Of Non-Threaded Hole In Clutch
Cam
1 – NON-THREADED HOLE
2 – OVERRUNNING CLUTCH CAM
DN
42/44RE AUTOMATIC TRANSMISSION
21 - 103
DISASSEMBLY AND ASSEMBLY (Continued)
(6) Install new gasket at rear of transmission case.
Use petroleum jelly to hold gasket in place. Be sure
to align governor feed holes in gasket with feed pas-
sages in case (Fig. 192). Also install gasket before
overdrive piston retainer. Center hole in gasket is
smaller than retainer and cannot be installed over
retainer.
(7) Position overdrive piston retainer on transmis-
sion case and align bolt holes in retainer, gasket and
case (Fig. 193). Then install and tighten retainer
bolts to 17 N·m (13 ft. lbs.) torque.
(8) Install new seals on over drive piston.
(9) Stand transmission case upright on bellhous-
ing.
(10) Position Guide Ring 8114-1 on outer edge of
overdrive piston retainer.
Fig. 190 Location Of Blank Area In Clutch Cam Bolt
Circle
1 – OVERRUNNING CLUTCH CAM SEAT IN CASE
2 – NON-THREADED HOLE IN CLUTCH CAM ALIGNS HERE
(BLANK AREA) OF SEAT
Fig. 191 Overrunning Clutch Installation
1 – ALIGN MARKS IDENTIFYING NON-THREADED HOLE IN
CAM AND CASE
2 – OVERRUNNING CLUTCH ASSEMBLY
Fig. 192 Installing/Aligning Case Gasket
1 – CASE GASKET
2 – BE SURE GOVERNOR TUBE FEED HOLES IN CASE AND
GASKET ARE ALIGNED
Fig. 193 Aligning Overdrive Piston Retainer
1 – PISTON RETAINER
2 – GASKET
3 – RETAINER BOLTS
21 - 104
42/44RE AUTOMATIC TRANSMISSION
DN
DISASSEMBLY AND ASSEMBLY (Continued)
(11) Position Seal Guide 8114-2 on inner edge of
overdrive piston retainer.
(12) Install overdrive piston in overdrive piston
retainer by: aligning locating lugs on overdrive piston
to the two mating holes in retainer.
(a) Aligning locating lugs on overdrive piston to
the two mating holes in retainer.
(b) Lubricate overdrive piston seals with Mopar
t
Door Ease, or equivalent.
(c) Install piston over Seal Guide 8114–2 and
inside Guide Ring 8114–1.
(d) Push
overdrive
piston
into
position
in
retainer.
(e) Verify that the locating lugs entered the lug
bores in the retainer.
NOTE: INSTALL THE REMAINING TRANSMISSION
COMPONENTS AND OVERDRIVE UNIT.
FRONT SERVO PISTON
DISASSEMBLY
(1) Remove seal ring from rod guide (Fig. 194).
(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.
ASSEMBLY
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.
194).
(3) Set servo components aside for installation dur-
ing transmission reassembly.
REAR SERVO PISTON
DISASSEMBLY
(1) Remove small snap ring and remove plug and
spring from servo piston (Fig. 195).
(2) Remove and discard servo piston seal ring.
ASSEMBLY
(1) Lubricate piston and guide seals with petro-
leum jelly. Lubricate other servo parts with Mopar
t
ATF Plus 3, Type 7176, transmission fluid.
(2) Install new seal ring on servo piston.
(3) Assemble piston, plug, spring and new snap
ring.
(4) Lubricate piston seal lip with petroleum jelly.
OIL PUMP AND REACTION SHAFT SUPPORT
DISASSEMBLY
(1) Remove seal ring from housing and reaction
shaft support (Fig. 196).
(2) Mark pump housing and support assembly for
alignment reference.
Fig. 194 Front Servo
1 – PISTON RINGS
2 – SERVO PISTON
3 – O-RING
4 – SNAP RING
5 – PISTON ROD GUIDE
6 – SEAL RING
7 – SNAP RING
8 – SERVO SPRING
9 – WASHER
10 – SPRING
11 – PISTON ROD
Fig. 195 Rear Servo Components
1 – SNAP RING
2 – PISTON SEAL
3 – PISTON PLUG
4 – SPRING RETAINER
5 – SNAP RING
6 – PISTON SPRING
7 – CUSHION SPRING
8 – PISTON
DN
42/44RE AUTOMATIC TRANSMISSION
21 - 105
DISASSEMBLY AND ASSEMBLY (Continued)
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