2001 DODGE RAM Service Repair Manual

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Page 2049 of 2889

DODGE RAM 2001 Service Repair Manual Fig. 202 Installing Driving Shell Rear Thrust Plate
1 - DRIVING SHELL
2 - SUN GEAR
3 - REAR THRUST PLATE
Fig. 203 Supporting Sun Gear On Wood Block
1 - SUN GEAR
2 - DRIVING SHELL
3 - WOOD BLOCK
Fig. 2

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DODGE RAM 2001 Service Repair Manual (14) Install front planetary gear on output shaft
and in driving shell (Fig. 207).
(15) Install front thrust washer on front planetary
gear. Use enough petroleum jelly to hold washer in
place and be s

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DODGE RAM 2001 Service Repair Manual Fig. 209 Installing Front Annulus Thrust Washer
1 - WASHER FLAT ALIGNS WITH FLAT ON PLANETARY HUB
2 - FRONT ANNULUS THRUST WASHER
3 - TAB FACES FRONT
Fig. 210 Installing Front Annulus Snap-Ring
1 - SN

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DODGE RAM 2001 Service Repair Manual REAR CLUTCH
DESCRIPTION
The rear clutch assembly (Fig. 213) is composed of
the rear clutch retainer, pressure plate, clutch plates,
driving discs, piston, Belleville spring, and snap-
rings. The Belle

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DODGE RAM 2001 Service Repair Manual When pressure is released from the piston, the
spring returns the piston to its fully released position
and disengages the clutch. The release spring also
helps to cushion the application of the clutc

When pressure is released from the piston, the
spring returns the piston to its fully released position
and disengages the clutch. The release spring also
helps to cushion the application of the clutch assem-
bly. When the clutch is in the process of being
released by the release spring, fluid flows through a
vent and one-way ball-check-valve located in the pis-
ton. The check-valve is needed to eliminate the pos-
sibility of plate drag caused by centrifugal force
acting on the residual fluid trapped in the clutch pis-
ton retainer.
DISASSEMBLY
(1) Remove fiber thrust washer from forward side
of clutch retainer.
(2) Remove input shaft front/rear seal rings.
(3) Remove selective clutch pack snap-ring (Fig.
214).(4) Remove top pressure plate, clutch discs, steel
plates, bottom pressure plate and wave snap-ring
and wave spring (Fig. 214).
(5) Remove clutch piston with rotating motion.
(6) Remove and discard piston seals.
(7) Remove input shaft snap-ring (Fig. 215). It
may be necessary to press the input shaft in slightly
to relieve tension on the snap-ring
(8) Press input shaft out of retainer with shop
press and suitable size press tool. Use a suitably
sized press tool to support the retainer as close to the
input shaft as possible.CLEANING
Clean the clutch components with solvent and dry
them with compressed air. Do not use rags or shop
towels to dry any of the clutch parts. Lint from such
materials will adhere to component surfaces and
could restrict or block fluid passages after assembly.
Fig. 214 Rear Clutch Components
1 - PISTON SPRING 10 - TOP PRESSURE PLATE
2 - REAR CLUTCH PISTON 11 - CLUTCH DISCS (4)
3 - CLUTCH PISTON SEALS 12 - BOTTOM PRESSURE PLATE
4 - OUTPUT SHAFT THRUST WASHER (METAL) 13 - WAVE SPRING
5 - INPUT SHAFT SNAP-RING 14 - CLUTCH PLATES (3)
6 - REAR CLUTCH RETAINER 15 - RETAINER SEAL RING
7 - INPUT SHAFT 16 - SHAFT REAR SEAL RING (PLASTIC)
8 - REAR CLUTCH THRUST WASHER (FIBER) 17 - SHAFT FRONT SEAL RING (TEFLON)
9 - CLUTCH PACK SNAP-RING (SELECTIVE)
21 - 418 AUTOMATIC TRANSMISSION - 44REBR/BE
REAR CLUTCH (Continued)

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DODGE RAM 2001 Service Repair Manual INSPECTION
Replace the clutch discs if warped, worn, scored,
burned/charred, the lugs are damaged, or if the fac-
ing is flaking off. Replace the top and bottom pres-
sure plates if scored, warped, or

INSPECTION
Replace the clutch discs if warped, worn, scored,
burned/charred, the lugs are damaged, or if the fac-
ing is flaking off. Replace the top and bottom pres-
sure plates if scored, warped, or cracked. Be sure the
driving lugs on the pressure and clutch plates are
also in good condition. The lugs must not be bent,
cracked or damaged in any way.
Replace the piston spring and wave spring if either
part is distorted, warped or broken.
Check the lug grooves in the clutch retainer. The
clutch and pressure plates should slide freely in the
slots. Replace the retainer if the grooves are worn or
damaged. Also check action of the check balls in the
retainer and piston. Each check ball must move
freely and not stick.
Replace the retainer bushing if worn, scored, or
doubt exists about bushing condition.
Inspect the piston and retainer seal surfaces for
nicks or scratches. Minor scratches can be removed
with crocus cloth. However, replace the piston and/or
retainer if the seal surfaces are seriously scored.
Check condition of the fiber thrust washer and
metal output shaft thrust washer. Replace either
washer if worn or damaged.
Check condition of the seal rings on the input shaft
and clutch retainer hub. Replace the seal rings only
if worn, distorted, or damaged. The input shaft front
seal ring is teflon with chamfered ends. The rear ring
is metal with interlocking ends.
Check the input shaft for wear, or damage. Replace
the shaft if worn, scored or damaged in any way.
ASSEMBLY
(1) Soak clutch discs in transmission fluid while
assembling other clutch parts.
(2) Install new seal rings on clutch retainer hub
and input shaft, if necessary, (Fig. 216) and (Fig.
217).
(a) Be sure clutch hub seal ring is fully seated in
groove and is not twisted.
(3) Lubricate splined end of input shaft and clutch
retainer with transmission fluid. Then press input
shaft into retainer (Fig. 218). Use a suitably sized
press tool to support retainer as close to input shaft
as possible.
(4) Install input shaft snap-ring (Fig. 217).
(5) Invert retainer and press input shaft in oppo-
site direction until snap-ring is seated.
(6) Install new seals on clutch piston. Be sure lip
of each seal faces interior of clutch retainer.
(7) Lubricate lip of piston seals with generous
quantity of MopartDoor Ease. Then lubricate
retainer hub and bore with light coat of transmission
fluid.
(8) Install clutch piston in retainer. Use twisting
motion to seat piston in bottom of retainer. A thin
strip of plastic (about 0.0209thick), can be used to
guide seals into place if necessary.
CAUTION: Never push the clutch piston straight in.
This will fold the seals over causing leakage and
clutch slip. In addition, never use any type of metal
tool to help ease the piston seals into place. Metal
tools will cut, shave, or score the seals.
(9) Install piston spring in retainer and on top of
piston (Fig. 219). Concave side of spring faces down-
ward (toward piston).
(10) Install wave spring in retainer (Fig. 219). Be
sure spring is completely seated in retainer groove.
(11) Install bottom pressure plate (Fig. 216).
Ridged side of plate faces downward (toward piston)
and flat side toward clutch pack.
(12) Install first clutch disc in retainer on top of
bottom pressure plate. Then install a clutch plate fol-
lowed by a clutch disc until entire clutch pack is
installed (4 discs and 3 plates are required) (Fig.
216).
(13) Install top pressure plate.
(14) Install selective snap-ring. Be sure snap-ring
is fully seated in retainer groove.
Fig. 215 Removing Input Shaft Snap-Ring
1 - REAR CLUTCH RETAINER
2 - INPUT SHAFT SNAP-RING
3 - SNAP-RING PLIERS
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 419
REAR CLUTCH (Continued)

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DODGE RAM 2001 Service Repair Manual Fig. 216 Rear Clutch Retainer And Input Shaft Seal
Ring Installation
1 - REAR CLUTCH RETAINER HUB SEAL RING
2 - INPUT SHAFT SEAL RINGS
Fig. 217 Input Shaft Seal Ring Identification
1 - PLASTIC REAR SE

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DODGE RAM 2001 Service Repair Manual (15) Using a suitable gauge bar and dial indicator,
measure clutch pack clearance (Fig. 220).
(a) Position gauge bar across the clutch drum
with the dial indicator pointer on the pressure
plate (Fig.

(15) Using a suitable gauge bar and dial indicator,
measure clutch pack clearance (Fig. 220).
(a) Position gauge bar across the clutch drum
with the dial indicator pointer on the pressure
plate (Fig. 220).
(b) Using two small screw drivers, lift the pres-
sure plate and release it.
(c) Zero the dial indicator.
(d) Lift the pressure plate until it contacts the
snap-ring and record the dial indicator reading.
Clearance should be 0.559 - 0.914 mm (0.022 -
0.036 in.). If clearance is incorrect, steel plates, discs,
selective snap ring and pressure plates may have to
be changed.
The selective snap-ring thicknesses are:
²0.107-0.109 in.
²0.098-0.100 in.
²0.095-0.097 in.
²0.083-0.085 in.
²0.076-0.078 in.
²0.071-0.073 in.
²0.060-0.062 in.
(16) Coat rear clutch thrust washer with petro-
leum jelly and install washer over input shaft and
into clutch retainer (Fig. 221). Use enough petroleum
jelly to hold washer in place.
REAR SERVO
DESCRIPTION
The rear (low/reverse) servo consists of a single
stage or diameter piston and a spring loaded plug.
The spring is used to cushion the application of the
rear (low/reverse) band.
OPERATION
While in the de-energized state (no pressure
applied), the piston is held up in its bore by the pis-
ton spring. The plug is held down in its bore, in the
piston, by the plug spring. When pressure is applied
to the top of the piston, the plug is forced down in its
bore, taking up any clearance. As the piston moves, it
causes the plug spring to compress, and the piston
moves down over the plug. The piston continues to
move down until it hits the shoulder of the plug and
fully applies the band. The period of time from the
initial application, until the piston is against the
shoulder of the plug, represents a reduced shocking
of the band that cushions the shift.
DISASSEMBLY
(1) Remove small snap-ring and remove plug and
spring from servo piston (Fig. 222).
(2) Remove and discard servo piston seal ring.
Fig. 220 Checking Rear Clutch Pack Clearance
1 - DIAL INDICATOR
2 - PRESSURE PLATE
3 - SNAP-RING
4-STAND
5 - REAR CLUTCH
6 - GAUGE BAR
Fig. 221 Installing Rear Clutch Thrust Washer
1 - REAR CLUTCH RETAINER
2 - REAR CLUTCH THRUST WASHER
BR/BEAUTOMATIC TRANSMISSION - 44RE 21 - 421
REAR CLUTCH (Continued)

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