1998 DODGE RAM 1500 transmission

(2) Rotate the transmission to the horizontal posi-
tion, if necessary.
(3) Remove the shift tower (Fig. 5) and isolator
plate (Fig. 6).(4) Remove primary shift rail detent plug (Fig. 7).
(5) Remove primary shift rail detent spring (Fig.
8).
Fig. 5 REMOVE SHIFT TOWER
1 - SHIFT TOWER
2 - TRANSMISSION
Fig. 6 SHIFT TOWER ISOLATOR PLATE
1 - ISOLATOR PLATE
2 - TRANSMISSION
Fig. 7 PRIMARY SHIFT RAIL DETENT PLUG
1 - DETENT PLUG
Fig. 8 PRIMARY SHIFT RAIL DETENT SPRING
1 - DETENT SPRING
21 - 92 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

(6) Remove primary shift rail detent plunger (Fig.
9).
(7) Remove clutch housing bolts (10) (Fig. 10) from
inside the housing.(8) Remove shift rail blocker bolt (Fig. 11) from the
side of the transmission gear case.
EXTENSION/ADAPTER HOUSING
(1) Remove bolts holding the extension/adapter
housing onto the transmission gear case.
(2) Remove extension/adapter housing from the
transmission gear case with Puller 8244 (Fig. 12).
NOTE: It may be necessary to straighten the housing
during removal due to the tendency for the reverse
idler shaft to bind into one side of the housing.
Fig. 9 PRIMARY SHIFT RAIL DETENT PLUNGER
1 - DETENT PLUNGER
Fig. 10 CLUTCH HOUSING BOLTS
1 - BOLTS (10)
Fig. 11 SHIFT RAIL BLOCKER BOLT
1 - BLOCKER BOLT
Fig. 12 TRANSMISSION CASE PULLER
1 - PULLER
2 - EXTENSION/ADAPTER HOUSING
DRMANUAL TRANSMISSION - NV5600 21 - 93
MANUAL TRANSMISSION - NV5600 (Continued)

(3) Remove crossover detent plug, spring and
plunger from the extension/adapter housing (Fig. 13).
(4) Remove bolt and washer holding the crossover
cam to the extension/adapter housing (Fig. 14).
(5) Remove crossover cam from the extension/
adapter housing.(6) Remove back-up lamp switch from the exten-
sion/adapter housing.
(7) Remove countershaft rear bearing race from
the extension/adapter housing with Remover L-4518
(Fig. 15).
NOTE: Tag all countershaft pre-load shims from
between the bearing race and the housing (Fig. 16).
(8) Remove crossover cam bushing from the exten-
sion/adapter housing with Remover 8240.
(9) On 4X2 vehicles, remove extension housing
seal with a pry tool or a slide hammer and screw.
(10) On 4X4 vehicles, remove adapter housing seal
with a pry tool or a slide hammer and screw.
Fig. 13 CROSSOVER CAM DETENT PLUG
1 - DETENT PLUG
2 - EXTENSION HOUSING
Fig. 14 CROSSOVER CAM BOLT
1 - CROSSOVER CAM
2 - BOLT
3 - EXTENSION HOUSING
Fig. 15 COUNTERSHAFT REAR BEARING RACE
1 - REMOVER
Fig. 16 COUNTERSHAFT REAR BEARING RACE
AND SHIM
1 - PRE-LOAD SHIM
2 - BEARING RACE
21 - 94 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

REVERSE GEAR
(1) Remove crossover cam rollers and pin (Fig. 17).
(2) Remove reverse idler thrust washer from the
reverse idler.
(3) Remove reverse idler and reverse countershaft
gears together (Fig. 18).(4) Remove reverse idler gear rear bearing, bear-
ing spacer, front bearing and front thrust washer
from the idler gear shaft.
(5) Remove reverse countershaft rear bearing from
the countershaft reverse gear assembly with Puller
C-293-PA and Adapters C-293-52 (Fig. 19).
(6) Seperate countershaft reverse gear and sleeve.
(7) Remove output shaft nut with Wrench 8226 on
the shaft nut and Socket 6993 or 6984 to hold the
shaft (Fig. 20). Discard output shaft nut from the
output shaft.
NOTE: If necessary strike the flat side area of
Wrench 8226 with a hammer to break the nut loose.
Fig. 17 CROSSOVER CAM ROLLERS AND PIN
1 - CROSSOVER CAM PIN
2 - CROSSOVER CAM ROLLERS
Fig. 18 REVERSE IDLER AND COUNTERSHAFT
GEARS
1 - REVERSE IDLER GEAR
2 - COUNTERSHAFT REVERSE GEAR
Fig. 19 COUNTERSHAFT REAR BEARING PULLER
1 - PULLER
2 - ADAPTERS
Fig. 20 LOOSEN OUTPUT SHAFT NUT
1 - WRENCH
2 - SOCKET
DRMANUAL TRANSMISSION - NV5600 21 - 95
MANUAL TRANSMISSION - NV5600 (Continued)

(8) Remove output shaft ball bearing assembly and
reverse thrust washer from the output shaft (Fig.
21).
(9) Remove reverse gear, reverse gear synchronizer
cone, reverse gear outer blocker ring and reverse
gear bearing (Fig. 22).(10) Remove reverse gear bearing sleeve from the
output shaft (Fig. 23).
NOTE: If necessary heat the sleeve slightly with a
heat gun. Do not use a torch to heat the sleeve or
damage to the output shaft may occur.
(11) Remove roll-pin securing the reverse shift fork
to the reverse shift rail witha6mm(7/32 in.) punch
and hammer.
Fig. 21 OUTPUT SHAFT BEARING AND THRUST
WASHER
1 - OUTPUT SHAFT BALL BEARING
2 - THRUST WASHER
Fig. 22 REVERSE GEAR COMPONENTS
1 - REVERSE GEAR
2 - REVERSE BEARING
3 - BLOCKER RING
4 - FRICTION CONE
Fig. 23 REVERSE BEARING SLEEVE
1 - REVERSE GEAR BEARING SLEEVE
21 - 96 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

(12) Remove reverse shift fork and synchronizer as
an assembly from the reverse shift rail and the out-
put shaft (Fig. 24).
TRANSMISSION GEAR CASE
(1) Remove remaining bolts holding the transmis-
sion gear case to the clutch housing.
(2) Remove the shift socket roll pin witha6mm
(7/32 in.) punch and hammer.
(3) Turn shift socket so it won't catch the case
when lifting it up.
(4) Install Fixture 8232 to the transmission gear
case.
(5) Attach an engine crane or equivalent to Fixture
8232 and remove the transmission gear case from the
clutch housing (Fig. 25).
(6) Remove rear output shaft and countershaft
bearing races from the transmission gear case with a
brass drift and hammer.
GEARTRAIN
(1) Remove bolts holding the 5-6 crossover bracket
to the clutch housing (Fig. 26).
Fig. 24 REVERSE SHIFT FORK AND SYNCHRO
1 - REVERSE SYNCHRO
2 - REVERSE SHIFT FORK
Fig. 25 TRANSMISSION CASE LIFT FIXTURE
1 - FIXTURE
2 - TRANSMISSION CASE
Fig. 26 5-6 CROSSOVER BRACKET BOLTS
1 - 5-6 CROSSOVER BRACKET
DRMANUAL TRANSMISSION - NV5600 21 - 97
MANUAL TRANSMISSION - NV5600 (Continued)

(2) Attach Fixture 8232 to the output shaft and
countershaft (Fig. 27).
(3) Attach an engine crane or equivalent to Fixture
8232 and raise the geartrain approximately 1/4 in.
from the clutch housing.
(4) Remove 5-6 crossover bracket from the clutch
housing.
(5) Lower the geartrain back into the clutch hous-
ing.
(6) Install Holding Tool 8242 (Fig. 28) onto the 5-6
synchro and tighten the screw to hold the 5-6 syn-
chro together during the removal operation.
NOTE: Note the order of the shift fork arms at the
primary shift rail, while in the Neutral position.
(7) Raise geartrain and shift rails until all the
shift rails clear the clutch housing.
(8) Remove shift rails from the rest of the
geartrain (Fig. 29).
(9) Raise the geartrain until the input shaft is
clear of the clutch housing.
Fig. 27 FIXTURE/OUTPUT SHAFT
1 - OUTPUT SHAFT
2 - FIXTURE
Fig. 28 Remove Holding Tool
1 - HOLDING TOOL
2 - 5-6 SYNCHRO
Fig. 29 SHIFT RAILS
1 - 5-6 SHIFT RAIL
21 - 98 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

(10) Remove geartrain from the clutch housing and
install the geartrain into Support Stand 8246 (Fig.
30).
(11) Remove Fixture 8232 from the output shaft
and the countershaft.
(12) Separate the countershaft from the output
shaft.
(13) Separate the output shaft from the input
shaft. Hold the 5-6 synchro together while removing
the output shaft to prevent the synchro sleeve from
being dislodged from the synchro hub.
COUNTERSHAFT BEARINGS
(1) Remove snap-ring holding the front counter-
shaft bearing onto the countershaft.
(2) Remove front countershaft bearing with Collar
6444-8, Jaws 6451, Puller Rods 6444-4 and Puller
6444 (Fig. 31).
(3) Remove rear countershaft bearing with Collar
6444-8, Jaws 6447, Puller Rods 6444-4, Puller 6444
and suitable press button (Fig. 32).
Fig. 30 GEARTRAIN FIXTURE
1 - FIXTURE
2 - SUPPORT STAND
Fig. 31 FRONT COUNTERSHAFT BEARING
1 - PULLER
2-JAWS
Fig. 32 REAR COUNTERSHAFT BEARING
1 - PULLER
2-JAWS
DRMANUAL TRANSMISSION - NV5600 21 - 99
MANUAL TRANSMISSION - NV5600 (Continued)