1998 DODGE RAM 1500 Workshop Manual

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Page 1929 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual Check the lugs on the clutch plates for wear. The
plates should slide freely in the drum. Replace the
plates or drum if binding occurs.
Check condition of the annulus gear, direct clutch
hub, clutch d

Check the lugs on the clutch plates for wear. The
plates should slide freely in the drum. Replace the
plates or drum if binding occurs.
Check condition of the annulus gear, direct clutch
hub, clutch drum and clutch spring. Replace the gear,
hub and drum if worn or damaged. Replace the
spring if collapsed, distorted, or cracked.
Be sure the splines and lugs on the gear, drum and
hub are in good condition. The clutch plates and
discs should slide freely in these components.
Inspect the thrust bearings and spring plate.
Replace the plate if worn or scored. Replace the bear-
ings if rough, noisy, brinnelled, or worn.
Inspect the planetary gear assembly and the sun
gear and bushings. If either the sun gear or the
bushings are damaged, replace the gear and bush-
ings as an assembly. The gear and bushings are not
serviced separately.
The planetary carrier and pinions must be in good
condition. Also be sure the pinion pins are secure and in
good condition. Replace the carrier if worn or damaged.
Inspect the overrunning clutch and race. The race
surface should be smooth and free of scores. Replace
the overrunning clutch assembly or the race if either
assembly is worn or damaged in any way.
Replace the shaft pilot bushing and inner bushing
if damaged. Replace either shaft bearing if rough or
noisy. Replace the bearing snap-rings if distorted or
cracked.
Check the machined surfaces on the output shaft.
These surfaces should clean and smooth. Very minor
nicks or scratches can be smoothed with crocus cloth.
Replace the shaft if worn, scored or damaged in any
way.
Inspect the output shaft bushings. The small bush-
ing is the intermediate shaft pilot bushing. The large
bushing is the overrunning clutch hub bushing.
Replace either bushing if scored, pitted, cracked, or
worn.
ASSEMBLY
GEARTRAIN AND DIRECT CLUTCH
(1) Soak direct clutch and overdrive clutch discs in
MopartATF +4, Automatic Transmission fluid. Allow
discs to soak for 10-20 minutes.(2) Install annulus gear on output shaft, if
removed. Then install annulus gear retaining snap-
ring (Fig. 147).
(3) Align and install clutch drum on annulus gear
(Fig. 148). Be sure drum is engaged in annulus gear
lugs.
(4) Install clutch drum outer retaining ring (Fig.
148).
Fig. 147 Annulus Gear Installation
1 - SNAP-RING
2 - OUTPUT SHAFT FRONT BEARING
3 - ANNULUS GEAR
Fig. 148 Clutch Drum And Outer Retaining Ring
Installation
1 - ANNULUS GEAR
2 - OUTER SNAP-RING
3 - CLUTCH DRUM
21 - 226 AUTOMATIC TRANSMISSION - 48REDR
OVERDRIVE UNIT (Continued)

Page 1930 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (5) Slide clutch drum forward and install inner
retaining ring (Fig. 149).
(6) Install rear bearing and snap-ring on output
shaft (Fig. 150). Be sure locating ring groove in bear-
ing is toward rear.

Page 1931 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (10) Install planetary gear in annulus gear (Fig.
153). Be sure planetary pinions are fully seated in
annulus gear before proceeding.
(11) Coat planetary thrust bearing and bearing
contact surface of

Page 1932 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (16) Install direct clutch spring (Fig. 157). Be sure
spring is properly seated on spring plate.
NOTE: The direct clutch in a 48RE transmission
uses 23 single-sided clutch discs.
(17) Assemble and ins

Page 1933 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (c) Install pressure plate. This is last clutch pack
item to be installed. Be sure plate is installed with
shoulder side facing upward (Fig. 159).
(18) Install clutch hub and clutch pack on direct
clu

Page 1934 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (24) Install clutch hub retaining ring (Fig. 162). Be
very sure retaining ring is fully seated in sun gear
ring groove.
(25) Slowly release press ram, remove compressor
tools and remove geartrain asse

Page 1935 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (7) Install overdrive gear case on geartrain (Fig.
166).
(8) Expand front bearing locating ring with snap-
ring pliers (Fig. 167). Then slide case downward until
locating ring locks in bearing groove

Page 1936 of 2627

DODGE RAM 1500 1998 2.G Workshop Manual (5) Install first clutch disc followed by first clutch
plate. Then install remaining clutch discs and plates
in same order.
(6) Install clutch pack pressure plate.
(7) Install clutch pack wire-type re

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