Dodge Durango (DN). Manual — part 101

ASSEMBLY

(1) Temporarily install overdrive piston retainer in

case. Use 3-4 bolts to secure retainer.

(2) Align and start new clutch cam and spring

retainer in case. Be sure serrations on cam and in
case are aligned (Fig. 198). Then tap cam into case
just enough to hold it in place.

(3)

Verify that cam is correctly positioned

before proceeding any further. Narrow ends of
cam ramps should be to left when cam is
viewed from front end of case (Fig. 198).

(4) Insert

Adapter

Tool

SP-5124

into

piston

retainer (Fig. 199).

(5) Assemble Puller Bolt SP-3701 and Press Plate

SP-3583-A (Fig. 200).

(6) Install assembled puller plate and bolt (Fig.

201). Insert bolt through cam, case and adapter tool.
Be sure plate is seated squarely on cam.

(7) Hold puller plate and bolt in place and install

puller nut SP-3701 on puller bolt (Fig. 202).

(8) Tighten puller nut to press clutch cam into

case (Fig. 202). Be sure cam is pressed into case
evenly and does not become cocked.

(9) Remove clutch cam installer tools.

Fig. 197 Overrunning Clutch Cam

1 – PIN PUNCH
2 – REAR SUPPORT BOLT HOLES

Fig. 198 Positioning Replacement Clutch Cam In

Case

1 – ALIGN SERRATIONS ON CAM AND IN CASE
2 – CLUTCH CAM

Fig. 199 Positioning Adapter Tool In Overdrive

Piston Retainer

1 – PISTON RETAINER
2 – SPECIAL TOOL SP5124

Fig. 200 Assembling Clutch Cam Puller Bolt And

Press Plate

1 – PULLER BOLT SP-3701
2 – PRESS PLATE SP-3583–A

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DISASSEMBLY AND ASSEMBLY (Continued)

(10)

Stake case in 12 places around clutch

cam to help secure cam in case. Use blunt
punch or chisel to stake case.

(11) Remove piston retainer from case. Cover

retainer with plastic sheeting, or paper to keep it
dust free.

(12) Clean case and cam thoroughly. Be sure any

chips/shavings generated during cam installation are
removed from case.

(13) 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
passages in case (Fig. 203). Also install gasket before
overdrive piston retainer. Center hole in gasket is
smaller than retainer and cannot be installed over
retainer.

(14) Position overdrive piston retainer on trans-

mission case and align bolt holes in retainer, gasket
and case (Fig. 204). Then install and tighten retainer
bolts to 17 N·m (13 ft. lbs.) torque.

(15) Install new seals on overdrive piston.
(16) Stand transmission case upright on bellhous-

ing.

(17) Position Guide Ring 8114-1 on outer edge of

overdrive piston retainer.

(18) Position Seal Guide 8114-3 on inner edge of

overdrive piston retainer.

(19) 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.

Fig. 201 Positioning Puller Plate On Clutch Cam

1 – SPECIAL TOOL SP-3701
2 – BE SURE PLATE SP-3583–A IS SEATED SQUARELY ON

CAM

Fig. 202 Pressing Overrunning Clutch Cam Into

Case

1 – SPECIAL TOOL SP3583–A
2 – TIGHTEN NUT TO DRAW CAM INTO CASE (NUT IS PART OF

BOLT SP3701)

3 – SPECIAL TOOL SP5124
4 – SPECIAL TOOL SP3701

Fig. 203 Installing/Aligning Case Gasket

1 – CASE GASKET
2 – BE SURE GOVERNOR TUBE FEED HOLES IN CASE AND

GASKET ARE ALIGNED

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DISASSEMBLY AND ASSEMBLY (Continued)

(c) Install piston over Seal Guide 8114–3 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.

FRONT SERVO PISTON

DISASSEMBLY

(1) Remove seal ring from rod guide (Fig. 205).
(2) Remove small snap ring from servo piston rod.

Then remove piston rod, spring and washer from piston.

(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 petro-

leum 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. 205).

REAR SERVO PISTON

DISASSEMBLY

(1) Remove small snap ring and remove plug and

spring from servo piston (Fig. 206).

(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.

Fig. 206 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

Fig. 204 Aligning Overdrive Piston Retainer

1 – PISTON RETAINER
2 – GASKET
3 – RETAINER BOLTS

Fig. 205 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

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DISASSEMBLY AND ASSEMBLY (Continued)

OIL PUMP AND REACTION SHAFT SUPPORT

DISASSEMBLY

(1) Mark position of support in oil pump body for

assembly alignment reference. Use scriber or paint to
make alignment marks.

(2) Place pump body on two wood blocks.
(3) Remove reaction shaft support bolts and sepa-

rate support from pump body (Fig. 207).

(4) Remove pump inner and outer gears (Fig. 208).
(5) Remove O-ring seal from pump body (Fig. 209).

Discard seal after removal.

(6) Remove oil pump seal with Remover Tool

C-3981. Discard seal after removal.

Fig. 207 Reaction Shaft Support

1 – OIL PUMP
2 – REACTION SHAFT SUPPORT

Fig. 208 Pump Gear

1 – GEAR BORE
2 – PUMP BODY
3 – INNER GEAR
4 – OUTER GEAR

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DISASSEMBLY AND ASSEMBLY (Continued)