Dodge Durango (DN). Manual — part 91
(2) Mark propeller shaft and axle yoke for align-
ment reference.
(3) Disconnect and remove propeller shaft.
(4) Remove old seal with Seal Remover C-3985-B
(Fig. 77) from overdrive housing.
INSTALLATION
(1) Place seal in position on overdrive housing.
(2) Drive seal into overdrive housing with Seal
Installer C-3995-A (Fig. 78).
(3) Carefully guide propeller shaft slip yoke into
housing and onto output shaft splines. Align marks
made at removal and connect propeller shaft to rear
axle pinion yoke.
PARK/NEUTRAL POSITION SWITCH
REMOVAL
(1) Raise vehicle and position drain pan under
switch.
(2) Disconnect switch wires.
(3) Remove switch from case.
INSTALLATION
(1) Move shift lever to Park and Neutral positions.
Verify that switch operating lever fingers are cen-
tered in switch opening in case (Fig. 79).
(2) Install new seal on switch and install switch in
case. Tighten switch to 34 N·m (25 ft. lbs.) torque.
(3) Test continuity of new switch with 12V test
lamp.
(4) Connect switch wires and lower vehicle.
(5) Top off transmission fluid level.
Fig. 76 Checking Torque Converter Seating
1 – SCALE
2 – STRAIGHTEDGE
Fig. 77 Removing Overdrive Housing Yoke Seal
1 – SPECIAL TOOL C-3985–B
2 – SEAL
Fig. 78 Installing Overdrive Housing Yoke Seal
1 – SPECIAL TOOL C-3995–A OR C-3972–A
2 – SPECIAL TOOL C-4471
Fig. 79 Park/Neutral Position Switch
1 – NEUTRAL CONTACT
2 – MANUAL LEVER AND SWITCH PLUNGER IN REVERSE
POSITION
3 – PARK CONTACT
4 – SWITCH
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REMOVAL AND INSTALLATION (Continued)
GEARSHIFT CABLE
REMOVAL
(1) Shift transmission into Park.
(2) Remove nuts retaining the shift cable housing
to the dash panel (Fig. 80).
(3) Disconnect cable at lower column lever and
feed cable through dash panel opening to underside
of vehicle (Fig. 81).
(4) Raise vehicle.
(5) Disengage cable eyelet at transmission shift
lever and pull cable adjuster out of mounting bracket
(Fig. 82). Remove old cable from vehicle.
INSTALLATION
(1) Snap the cable into the transmission bracket so
the retaining ears are engaged and connect cable end
fitting onto the manual control lever ball stud.
(2) Lower vehicle.
(3) Route cable through hole in dash panel. Seat
cable bracket to dash panel. Install retaining nuts to
cable housing bracket studs inside the vehicle at the
dash panel.
(4) Place the auto transmission manual shift con-
trol lever in “Park” detent (rearmost) position and
rotate prop shaft to ensure transmission is in park.
(5) Connect shift cable to shifter lever by snapping
cable retaining ears into shifter bracket and press
cable end fitting into lever.
(6) Check for proper operation of Park/Neutral
switch.
(7) If the gearshift cable is out of adjustment, refer
to Adjustments section.
GOVERNOR SOLENOID AND PRESSURE
SENSOR
REMOVAL
(1) Hoist and support vehicle on safety stands.
(2) Remove transmission fluid pan and filter.
(3) Disengage wire connectors from pressure sen-
sor and solenoid (Fig. 83).
(4) Remove
screws
holding
pressure
solenoid
retainer to governor body.
(5) Separate solenoid retainer from governor (Fig.
84).
(6) Pull solenoid from governor body (Fig. 85).
(7) Pull pressure sensor from governor body.
(8) Remove bolts holding governor body to valve
body.
(9) Separate governor body from valve body (Fig.
86).
Fig. 80 Cable Mounting
1 – CABLE MOUNTING
2 – CABLE BRACKET AT TRANS.
3 – GEARSHIFT CABLE
Fig. 81 Cable at Gearshift Lever
1 – GEARSHIFT LEVER
2 – GEARSHIFT CABLE
Fig. 82 Shift Cable at the Transmission
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21 - 231
REMOVAL AND INSTALLATION (Continued)
(10) Remove governor body gasket.
INSTALLATION
Before installing the pressure sensor and solenoid
in the governor body, replace O-ring seals, clean the
gasket surfaces and replace gasket.
(1) Place gasket in position on back of governor
body (Fig. 86).
(2) Place governor body in position on valve body.
(3) Install bolts to hold governor body to valve
body.
(4) Lubricate
O-ring
on
pressure
sensor
with
transmission fluid.
(5) Align pressure sensor to bore in governor body.
(6) Push pressure sensor into governor body.
(7) Lubricate O-ring, on pressure solenoid, with
transmission fluid.
(8) Align pressure solenoid to bore in governor
body (Fig. 85).
(9) Push solenoid into governor body.
(10) Place solenoid retainer in position on governor
(Fig. 84).
(11) Install
screws
to
hold
pressure
solenoid
retainer to governor body.
(12) Engage wire connectors into pressure sensor
and solenoid (Fig. 83).
(13) Install transmission fluid pan and (new) filter.
(14) Lower vehicle and road test to verify repair.
VALVE BODY
The valve body can be removed for service without
having to remove the transmission assembly.
The valve body can be disassembled for cleaning
and inspection of the individual components. Refer to
Disassembly and Assembly section for proper proce-
dures.
The only replaceable valve body components are:
• Manual lever.
• Manual lever washer, seal, E-clip, and shaft
seal.
• Manual lever detent ball.
• Throttle lever.
• Fluid filter.
• Pressure adjusting screw bracket.
• Governor pressure solenoid.
• Governor pressure sensor (includes transmission
temperature thermistor).
• Converter clutch/overdrive solenoid assembly
and harness.
• Governor housing gasket.
• Solenoid case connector O-rings.
Fig. 83 Governor Solenoid And Pressure Sensor
1 – PRESSURE SENSOR
2 – PRESSURE SOLENOID
3 – GOVERNOR
Fig. 84 Pressure Solenoid Retainer
1 – PRESSURE SOLENOID RETAINER
2 – GOVERNOR
Fig. 85 Pressure Solenoid and O-ring
1 – PRESSURE SOLENOID
2 – O-RING
3 – GOVERNOR
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REMOVAL AND INSTALLATION (Continued)
The remaining valve body components are serviced
only as part of a complete valve body assembly.
REMOVAL
(1) Shift transmission into NEUTRAL.
(2) Raise vehicle.
(3) Remove gearshift and throttle levers from shaft
of valve body manual lever.
(4) Disconnect wires at solenoid case connector
(Fig. 87).
(5) Position drain pan under transmission oil pan.
(6) Remove transmission oil pan and gasket.
(7) Remove fluid filter from valve body.
(8) Remove bolts attaching valve body to transmis-
sion case.
(9) Lower valve body enough to remove accumula-
tor piston and springs.
(10) Work manual lever shaft and electrical con-
nector out of transmission case.
(11) Lower valve body, rotate valve body away
from case, pull park rod out of sprag, and remove
valve body (Fig. 88).
INSTALLATION
(1) Check condition of O-ring seals on valve body
harness connector (Fig. 89). Replace seals on connec-
tor body if cut or worn.
(2) Check condition of manual lever shaft seal in
transmission case. Replace seal if lip is cut or worn.
Install new seal with 15/16 deep well socket (Fig. 90).
(3) Check condition of seals on accumulator piston
(Fig. 91). Install new piston seals, if necessary.
(4) Place valve body manual lever in low (1 posi-
tion) so ball on park lock rod will be easier to install
in sprag.
(5) Lubricate shaft of manual lever with petroleum
jelly. This will ease inserting shaft through seal in
case.
(6) Lubricate seal rings on valve body harness con-
nector with petroleum jelly.
(7) Position valve body in case and work end of
park lock rod into and through pawl sprag. Turn pro-
peller shaft to align sprag and park lock teeth if nec-
essary. The rod will click as it enters pawl. Move rod
to check engagement.
Fig. 86 Governor Body and Gasket
1 – GOVERNOR BODY
2 – GASKET
Fig. 87 Transmission Case Connector
1 – SOLENOID CASE CONNECTOR
2 – PARK/NEUTRAL POSITION SWITCH CONNECTOR
TERMINAL
Fig. 88 Valve Body
1 – VALVE BODY
2 – WIRE HARNESS
3 – PARK ROD
4 – GOVERNOR PRESSURE SOLENOID
5 – GOVERNOR PRESSURE SENSOR
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21 - 233
REMOVAL AND INSTALLATION (Continued)
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