2002 DODGE RAM clutch

CONDITION POSSIBLE CAUSES CORRECTION
OIL LEAKS. 1. Fluid Lines and Fittings Loose/
Leaks/Damaged.1. Tighten fittings. If leaks persist, replace
fittings and lines if necessary.
2. Fill Tube (where tube enters case)
Leaks/Damaged.2. Replace tube seal. Inspect tube for
cracks in fill tube.
3. Pressure Port Plug Loose
Loose/Damaged.3. Tighten to correct torque. Replace plug
or reseal if leak persists.
4. Pan Gasket Leaks. 4. Tighten pan screws (150 in. lbs.). If leaks
persist, replace gasket.
5. Valve Body Manual Lever Shaft
Seal Leaks/Worn.5. Replace shaft seal.
6. Rear Bearing Access Plate Leaks. 6. Replace gasket. Tighten screws.
7. Gasket Damaged or Bolts are
Loose.7. Replace bolts or gasket or tighten both.
8. Adapter/Extension Gasket
Damaged Leaks/Damaged.8. Replace gasket.
9. Park/Neutral Switch, or
Transmission Range Sensor
Leaks/Damaged.9. Replace switch and gasket.
10. Converter Housing Area Leaks. 10. Check for leaks at seal caused by worn
seal or burr on converter hub (cutting seal),
worn bushing, missing oil return, oil in front
pump housing or hole plugged. Check for
leaks past O-ring seal on pump or past
pump-to-case bolts; pump housing porous,
oil coming out vent due to overfill or leak
past front band shaft access plug.
11. Pump Seal Leaks/Worn/
Damaged.11. Replace seal.
12. Torque Converter Weld
Leak/Cracked Hub.12. Replace converter.
13. Case Porosity Leaks. 13. Replace case.
NOISY OPERATION IN
FOURTH GEAR ONLY1. Overdrive Clutch Discs, Plates or
Snap Rings Damaged.1. Remove unit and rebuild clutch pack.
2. Overdrive Piston or Planetary
Thrust Bearing Damaged.2. Remove and disassemble unit. Replace
either thrust bearing if damaged.
3. Output Shaft Bearings Scored/
Damaged.3. Remove and disassemble unit. Replace
either bearing if damaged.
4. Planetary Gears Worn/Chipped. 4. Remove and overhaul overdrive unit.
5. Overdrive Unit Overrunning Clutch
Rollers Worn/Scored.5. Remove and overhaul overdrive unit.
BR/BEAUTOMATIC TRANSMISSION - 47RE 21 - 285
AUTOMATIC TRANSMISSION - 47RE (Continued)

(12) Remove front band lever pin access plug (Fig.
21). Use square end of 1/4 in. drive extension to
remove plug as shown.
(13) Remove oil pump and reaction shaft support
assembly as follows:
(a) Tighten front band adjusting screw until
band is tight around front clutch retainer (Fig. 22).
This will prevent retainer from coming out with
pump and possibly damaging clutch or pump com-
ponents.
(b) Remove oil pump bolts.
(c) Thread Slide Hammer Tools C-3752 into
threaded holes in flange of oil pump housing (Fig.
23).(d) Remove oil pump and reaction shaft support
by bumping slide hammers outward alternately to
pull pump from case (Fig. 24).
(14) Remove oil pump gasket (Fig. 25). Note gas-
ket position in case for assembly reference.
(15) Loosen front band adjusting screw until band
is completely loose.
(16) Remove front band strut and anchor (Fig. 26).
(17) Squeeze front band together slightly and slide
band over front clutch retainer and out of case (Fig.
27).
Fig. 20 Accumulator Component Removal
1 - ACCUMULATOR PISTON
2 - OUTER SPRING
3 - INNER SPRING
Fig. 21 Front Band Lever Pin Access Plug
1 - FRONT BAND REACTION PIN ACCESS PLUG
2 - 1/4 DRIVE EXTENSION AND RATCHET
Fig. 22 Tightening Front Band To Hold Front Clutch
In Place
1 - LOCK-NUT
2 - FRONT BAND ADJUSTER
Fig. 23 Oil Pump Removal Tools
1 - PUMP HOUSING
2 - SLIDE HAMMER TOOLS (THREAD INTO PUMP HOUSING)
BR/BEAUTOMATIC TRANSMISSION - 47RE 21 - 289
AUTOMATIC TRANSMISSION - 47RE (Continued)

(18) Remove front and rear clutch assemblies as a
unit (Fig. 28).
(19) Remove front band reaction pin and lever.
Start pin through lever and out of case bore with
drift or punch. Then use pencil magnet to withdraw
pin completely (Fig. 29).
(20) Remove intermediate shaft thrust washer. Tri-
angular shaped washer will either be on shaft pilot
hub or in rear clutch retainer (Fig. 30).
(21) Remove thrust plate from intermediate shaft
hub (Fig. 31).(22) Remove intermediate shaft-planetary
geartrain assembly (Fig. 32).
(23) If overdrive unit is not to be serviced, install
Alignment Shaft 6227-2 into the overdrive unit to
prevent misalignment of the overdrive clutches dur-
ing service of main transmission components.
Fig. 24 Oil Pump Removal
1 - OIL PUMP AND REACTION SHAFT SUPPORT
Fig. 25 Oil Pump Gasket
1 - OIL PUMP GASKET
Fig. 26 Front Band Linkage
1 - LEVER
2 - STRUT
3 - ANCHOR
4 - FRONT BAND
Fig. 27 Front Band Removal
1 - FRONT BAND
2 - FRONT CLUTCH RETAINER
21 - 290 AUTOMATIC TRANSMISSION - 47REBR/BE
AUTOMATIC TRANSMISSION - 47RE (Continued)

(24) Loosen rear band locknut and loosen adjust-
ing screw 3-4 turns.
(25) Remove snap-ring that retains low-reverse
drum on overdrive piston retainer hub (Fig. 33).
(26) Slide low-reverse drum and thrust washer off
piston retainer hub and out of rear band (Fig. 34).
(27) Note that overrunning clutch race will remain
on splines of low-reverse drum after removal (Fig.
35).The race is a permanent press fit on the
hub splines. Do not attempt to remove the race.
Fig. 28 Removing Front/Rear Clutch Assemblies
1 - FRONT AND REAR CLUTCH ASSEMBLIES
Fig. 29 Front Band Lever And Pin
1 - BAND LEVER
2 - USE PENCIL MAGNET TO REMOVE REACTION PIN
Fig. 30 Intermediate Shaft Thrust Washer
1 - THRUST WASHER
2 - INTERMEDIATE SHAFT PILOT HUB
Fig. 31 Intermediate Shaft Thrust Plate
1 - SHAFT THRUST PLATE
2 - INTERMEDIATE SHAFT PILOT HUB
BR/BEAUTOMATIC TRANSMISSION - 47RE 21 - 291
AUTOMATIC TRANSMISSION - 47RE (Continued)

(28) Remove overrunning clutch assembly (Fig.
36). Assembly can be removed without displacing
rollers and springs if care is exercised. Note position
of rollers and springs for assembly reference.
(29) Remove rear band adjusting lever and reac-
tion pin.
(30) Remove rear band.
(31) Compress front servo rod guide with large
C-clamp and Tool C-4470, or Compressor Tool
C-3422-B (Fig. 37). Compress guide only enough to
permit snap-ring removal (about 1/8 in.).(32) Remove servo piston snap-ring (Fig. 37).
Unseat one end of ring. Then carefully work removal
tool around back of ring until free of ring groove.
Exercise caution when removing snap-ring.
Servo bore can be scratched or nicked if care is
not exercised.
(33) Remove tools and remove servo piston and
spring.
Fig. 32 Intermediate Shaft And Planetary Geartrain
1 - INTERMEDIATE SHAFT AND PLANETARY GEAR TRAIN
ASSEMBLY
Fig. 33 Low-Reverse Drum Snap-Ring
1 - LOW-REVERSE DRUM
2 - TABBED WASHER
3 - SNAP-RING
Fig. 34 Low-Reverse Drum And Thrust Washer
1 - LOW-REVERSE DRUM
2 - SPOTFACE FOR WASHER
3 - THRUST WASHER
Fig. 35 Overrunning Clutch Race Position On
Low-Reverse Drum
1 - OVERRUNNING CLUTCH RACE
2 - LOW-REVERSE DRUM
21 - 292 AUTOMATIC TRANSMISSION - 47REBR/BE
AUTOMATIC TRANSMISSION - 47RE (Continued)

(34) Compress rear servo piston with C-clamp and
Tool C-4470, or Valve Spring Compressor C-3422-B
(Fig. 38). Compress servo spring retainer only
enough to permit snap-ring removal.
(35) Remove servo piston snap-ring (Fig. 38). Start
one end of ring out of bore. Then carefully work
removal tool around back of snap-ring until free of
ring groove.Exercise caution when removing
snap-ring. Servo bore can be scratched or
nicked if care is not exercised.
(36) Remove tools and remove rear servo retainer,
spring and piston assembly.
CLEANING
Clean the case in a solvent tank. Flush the case
bores and fluid passages thoroughly with solvent.
Dry the case and all fluid passages with compressed
air. Be sure all solvent is removed from the case and
that all fluid passages are clear.
NOTE: Do not use shop towels or rags to dry the
case (or any other transmission component) unless
they are made from lint-free materials. Lint will stick
to case surfaces and transmission components and
circulate throughout the transmission after assem-
bly. A sufficient quantity of lint can block fluid pas-
sages and interfere with valve body operation.
Lubricate transmission parts with MopartATF +4,
type 9602, transmission fluid during overhaul and
assembly. Use petroleum jelly, MopartDoor Ease, or
Ru-GlydeŸ to prelubricate seals, O-rings, and thrust
washers. Petroleum jelly can also be used to hold
parts in place during reassembly.
INSPECTION
Inspect the case for cracks, porous spots, worn
bores, or damaged threads. Damaged threads can be
repaired with Helicoil thread inserts. However, the
case will have to be replaced if it exhibits any type of
damage or wear.
Lubricate the front band adjusting screw threads
with petroleum jelly and thread the screw part-way
into the case. Be sure the screw turns freely.
Inspect the transmission bushings during overhaul.
Bushing condition is important as worn, scored bush-
Fig. 36 Overrunning Clutch
1 - CLUTCH CAM
2 - OVERRUNNING CLUTCH ASSEMBLY
Fig. 37 Front Servo Retaining Snap-Ring
1 - C-CLAMP
2 - FRONT SERVO ROD GUIDE
3 - SNAP-RING
4 - TOOL C-4470
Fig. 38 Rear Servo Retaining Snap-Ring
1 - TOOL C-4470
2 - C-CLAMP
3 - REAR SERVO SPRING RETAINER
4 - RETAINER SNAP-RING
BR/BEAUTOMATIC TRANSMISSION - 47RE 21 - 293
AUTOMATIC TRANSMISSION - 47RE (Continued)

ings contribute to low pressures, clutch slip and
accelerated wear of other components. However, do
not replace bushings as a matter of course. Replace
bushings only when they are actually worn, or
scored.
Use recommended tools to replace bushings. The
tools are sized and designed to remove, install, and
seat bushings correctly. The bushing replacement
tools are included in Bushing Tool Set C-3887-B.
Pre-sized service bushings are available for
replacement purposes. Only the sun gear bushings
are not serviced.
The use of crocus cloth is permissible where neces-
sary, providing it is used carefully. When used on
shafts, or valves, use extreme care to avoid rounding
off sharp edges. Sharp edges are vital as they pre-
vent foreign matter from getting between the valve
and valve bore.
Do not reuse oil seals, gaskets, seal rings, or
O-rings during overhaul. Replace these parts as a
matter of course. Also do not reuse snap rings or
E-clips that are bent or distorted. Replace these parts
as well.
ASSEMBLY
Do not allow dirt, grease, or foreign material to
enter the case or transmission components during
assembly. Keep the transmission case and compo-
nents clean. Also make sure the tools and workbench
area used for reassembly operations are equally
clean.
Shop towels used for wiping off tools and your
hands must be made fromlint freematerials. Lint
will stick to transmission parts and could interfere
with valve operation or even restrict fluid passages.
Lubricate transmission clutch and gear compo-
nents with MopartATF +4, type 9602, during reas-
sembly. Soak clutch discs in transmission fluid before
installation.
Use MopartDoor Ease, or Ru-GlydeŸ on piston
seals and o-rings to ease installation. Petroleum jelly
can also be used to lubricate and hold thrust washers
and plates in position during assembly.
Do not use chassis grease, bearing grease,
white grease, or similar lubricants on any part.
These types of lubricants can eventually block or
restrict fluid passages and valve operation. Use
petroleum jelly only.
Do not force parts into place. The transmission
components and sub-assemblies are easily installed
by hand when properly aligned. If a part seems dif-
ficult to install, it is either misaligned or incorrectly
assembled. Verify that thrust washers, thrust plates
and seal rings are correctly positioned.
The planetary geartrain, front/rear clutch assem-
blies and oil pump are all much easier to installwhen the transmission case is upright. Either tilt the
case upward with wood blocks, or cut a hole in the
bench large enough for the intermediate shaft and
rear support. Then lower the shaft and support into
the hole and support the rear of the case directly on
the bench.
FRONT/REAR SERVO
(1) Lubricate rear servo piston seal with Mopart
Door Ease or ATF +4. Lubricate servo bore in case
with ATF +4.
(2) Install rear servo piston in case. Position piston
at slight angle to bore and insert piston with twisting
motion (Fig. 39).
(3) Install rear servo spring and retainer in case
bore (Fig. 40). Be sure spring is seated on piston.
(4) Compress rear servo piston with C-clamp or
Valve Spring Compressor C-3422-B and install servo
piston snap-ring (Fig. 41).
(5) Lubricate front servo piston components and
servo bore in case with transmission fluid.
(6) Install front servo piston in bore. Carefully
ªrunº small, suitable tool around piston ring to press
it back into groove and ease installation (Fig. 42).
Rotate piston into bore at same time. Rock piston
slightly to ease piston ring past snap-ring groove and
into bore.
(7) Bottom front servo piston in bore and install
servo spring.
(8) Install front servo piston rod guide as follows:
(a) Place Tool SP-5560 (or similar size tool) on
guide and position C-clamp on tool and case (Fig.
43).
(b) Slowly compress rod guide while simulta-
neously easing seal ring into bore with suitable
tool.
(9) Install rod guide snap-ring (Fig. 43).
Fig. 39 Rear Servo Piston
1 - REAR SERVO PISTON
21 - 294 AUTOMATIC TRANSMISSION - 47REBR/BE
AUTOMATIC TRANSMISSION - 47RE (Continued)

OVERRUNNING CLUTCH, REAR BAND, AND
LOW-REVERSE DRUM
(1) Install overrunning clutch components if not
yet installed.
(2) Position rear band reaction pin and band in
case. Be sure that the twin lugs on the band are
seated against the reaction pin.
(3) Install low-reverse drum. Slide drum through
rear band, onto piston retainer hub and into engage-
ment with overrunning clutch and race.(4) Install thrust washer in low-reverse drum spot-
face (Fig. 44). Use petroleum jelly to hold washer in
place.
(5) Install snap-ring that secures low-reverse drum
to piston retainer hub (Fig. 44).
(6) Insert the rear band pivot pin part way into
the case.
Fig. 40 Rear Servo Piston Spring And Retainer
1 - PISTON SPRING
2 - REAR SERVO PISTON
3 - SPRING RETAINER
Fig. 41 Rear Servo Snap-Ring
1 - TOOL C-4470
2 - C-CLAMP
3 - REAR SERVO SPRING RETAINER
4 - RETAINER SNAP-RING
Fig. 42 Front Servo Piston
1 - USE SUITABLE TOOL TO HELP SEAT PISTON RING
2 - FRONT SERVO PISTON
Fig. 43 Front Servo Rod Guide And Snap-Ring
1 - C-CLAMP
2 - ROD GUIDE
3 - SMALL SCREWDRIVER
4 - ROD GUIDE SNAP-RING
5 - TOOL SP-5560
BR/BEAUTOMATIC TRANSMISSION - 47RE 21 - 295
AUTOMATIC TRANSMISSION - 47RE (Continued)