Dodge Ram Truck 1500-2500-3500. Manual — part 1769
5. Lubricate front servo piston (2) components and
servo bore in case with transmission fluid.
6. Install front servo piston (2) in bore. Carefully “run”
small, suitable tool (1) around piston ring to press it
back into groove and ease installation. Rotate pis-
ton 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 (2) guide as follows:
a. Place Tool SP-5560 (or similar size tool) (5) on
guide and position C-clamp on tool and case.
b. Slowly compress rod guide while simulta-
neously easing seal ring into bore with suitable
tool.
9. Install rod guide snap-ring (4).
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
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 spotface
(2). Use petroleum jelly to hold washer in place.
5. Install snap-ring (3) that secures low-reverse drum
to piston retainer hub.
6. Insert the rear band pivot pin part way into the
case.
7. Install rear band adjusting lever and pivot pin. Be
sure lever and the single lug on the band are
aligned and engaged before seating band pivot pin in case.
PLANETARY GEARTRAIN, FRONT/REAR CLUTCH, AND FRONT BAND
1. Remove Alignment Shaft 6227-2, if installed previ-
ously.
2. Install assembled intermediate shaft and planetary
geartrain (1). Support shaft carefully during
installation. Do not allow shaft bearing/bushing
surfaces to become nicked or scratched.
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
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3. Lubricate intermediate shaft thrust plate (1) with
petroleum jelly and install plate on shaft pilot hub
(2).
4. Check input shaft front seal rings (1), fiber thrust
washer (4), and rear seal ring (3). Be sure the
ends of rear seal ring are hooked together and
diagonal cut ends of front seal rings are firmly
seated against each other as shown. Lubricate seal
rings with petroleum jelly after checking them.
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
5. Assemble front (1) and rear (2) clutches. Align lugs
on front clutch discs. Mount front clutch on rear
clutch. Turn front clutch retainer back and forth until
front clutch discs are fully seated on rear clutch
splined hub.
6. Install intermediate shaft thrust washer (3) in hub of
rear clutch retainer (2). Use petroleum jelly to hold
washer in place. Position washer so grooves are
facing outward. Washer only fits one way in
clutch retainer hub.
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AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
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