1998 DODGE RAM 1500 transmission

OUTPUT SHAFT BEARINGS
(1) Remove snap-ring holding the pocket bearing
onto the output shaft.
(2) Remove pocket bearing from the output shaft
with Sleeve 6444-8, Jaws 8234, Puller Rods 6444-4
and the remainder of Puller 6444 (Fig. 33).
(3) Remove snap-ring holding the rear output shaft
bearing onto the output shaft.
(4) Use Collar 6444-8, Jaws 8271 and Puller Rods
6444-3 for 4X2 vehicles or Puller Rods 6444-4 for 4X4
vehicles with the remainder of Puller 6444 to remove
the rear output shaft bearing from the output shaft.
(5) Remove rear output shaft thrust washer from
the output shaft.
INPUT SHAFT
(1) Remove fifth gear blocker ring from the input
shaft (Fig. 34).
(2) Remove fifth gear friction cone from the input
shaft (Fig. 35).
Fig. 33 OUTPUT SHAFT POCKET BEARING
1 - PULLER
2-JAWS
Fig. 34 FIFTH GEAR BLOCKER RING
1 - FIFTH GEAR BLOCKER RING
2 - INPUT SHAFT
Fig. 35 FIFTH GEAR FRICTION CONE
1 - FRICTION CONE
2 - INPUT SHAFT
21 - 100 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

(3) Remove output shaft pocket bearing race from
the input shaft with Puller L-4518 (Fig. 36).
(4) Remove input shaft bearing and oil guide from
the input shaft with Collar 6444-8, Jaws 8243, Puller
Rods 6444-6 and the remainder of Puller 6444 (Fig.
37).
OUTPUT SHAFT
NOTE: Some gear and synchro components can be
installed backwards. Mark the gears, clutch gears,
synchro hubs, and sleeves for installation reference
during disassembly. Use paint or a scribe for mark-
ing purposes. Then stack the geartrain parts in
order of removal.
(1) Remove first gear from the output shaft.
(2) Remove first gear bearing from the output
shaft (Fig. 38).
Fig. 36 OUTPUT SHAFT POCKET BEARING RACE
1 - PULLER
2 - INPUT SHAFT
Fig. 37 INPUT SHAFT BEARING
1 - PULLER
2-JAWS
Fig. 38 FIRST GEAR BEARING
1 - OUTPUT SHAFT
2 - FIRST GEAR BEARING
DRMANUAL TRANSMISSION - NV5600 21 - 101
MANUAL TRANSMISSION - NV5600 (Continued)

(3) Remove first gear blocker rings (2) and cones
from the 1-2 synchro assembly (Fig. 39).
(4) Install the remainder of the output shaft into
Fixture 8227 with press blocks under second gear.
(5) Install shaft and Fixture assembly into a shop
press (Fig. 40).
(6) Press second gear, 1-2 synchro assembly and
first gear bearing sleeve from the output shaft.
(7) Remove second gear bearing from the output
shaft.(8) Reverse output shaft in the Fixture 8227 with
press blocks positioned under the 5-6 synchro assem-
bly.
(9) Press the 5-6 synchro assembly from the out-
put shaft.
Fig. 39 FIRST GEAR BLOCKER RINGS AND
FRICTION CONE
1 - OUTPUT SHAFT
2 - FIRST GEAR BLOCKER RINGS
3 - FIRST GEAR FRICTION CONE
Fig. 40 SECOND GEAR, 1-2 SYNCHRO & FIRST
GEAR BEARING SLEEVE
1 - OUTPUT SHAFT
2 - FIRST GEAR BEARING SLEEVE
3 - SECOND GEAR
4 - FIXTURE
5 - 1-2 SYNCHRO
21 - 102 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

(10) Remove sixth gear and the sixth gear bearing
from the output shaft (Fig. 41).
COUNTERSHAFT
(1) Install the countershaft into Fixture 8227 with
press blocks located under the fifth countershaft
gear.
(2) Place the assembly into a shop press.
(3) Use Guide 8235 on end of countershaft and
press the countershaft fifth gear from the counter-
shaft (Fig. 42).
(4) Place countershaft in Fixture 8227 with press
blocks placed under the sixth countershaft gear.
(5) Use Guide 8235 on end of countershaft and
press the countershaft sixth gear from the counter-
shaft (Fig. 43).
Fig. 41 SIXTH GEAR COMPONENTS
1 - SIXTH GEAR FRICTION CONE
2 - SIXTH GEAR
3 - OUTPUT SHAFT
4 - SIXTH GEAR BLOCKER RING
5 - 5-6 SYNCHRO
Fig. 42 FIFTH COUNTERSHAFT GEAR
1 - GUIDE
2 - FIFTH COUNTER SHAFT GEAR
3 - FIXTURE
Fig. 43 SIXTH COUNTERSHAFT GEAR
1 - GUIDE
2 - SIXTH COUNTER SHAFT GEAR
3 - FIXTURE
DRMANUAL TRANSMISSION - NV5600 21 - 103
MANUAL TRANSMISSION - NV5600 (Continued)

(6) Remove countershaft from the press and Fix-
ture 8227.
(7) Remove fourth countershaft gear, friction cone,
blocker ring and bearing from the countershaft (Fig.
44).
(8) Install countershaft into Fixture 8227 with
press blocks located under the third countershaft
gear.
(9) Place assembly into a shop press and press
third countershaft gear, 3-4 synchro and fourth coun-
tershaft gear bearing sleeve from the countershaft
(Fig. 45).
(10) Remove countershaft from the press and Fix-
ture 8227.
(11) Remove third countershaft gear bearing from
the countershaft (Fig. 46).
(12) The 2-3 thrust washer should not normally
need to be removed from the countershaft. If neces-
sary slide 2-3 thrust washer off countershaft.
Fig. 44 FOURTH COUNTERSHAFT GEAR
COMPONENTS
1 - FOURTH GEAR BLOCKER RING
2 - FOURTH GEAR BEARING
3 - COUNTERSHAFT
4 - FOURTH GEAR FRICTION CONE
5 - FOURTH COUNTERSHAFT GEAR
Fig. 45 THIRD COUNTERSHAFT GEAR
COMPONENTS
1 - THIRD COUNTERSHAFT GEAR
2 - FIXTURE
3 - 3-4 SYNCHRO
4 - BEARING SLEEVE
5 - COUNTERSHAFT
Fig. 46 THIRD GEAR BEARING
1 - COUNTERSHAFT
2 - 2-3 THRUST WASHER
3 - THIRD COUNTERSHAFT GEAR BEARING
21 - 104 MANUAL TRANSMISSION - NV5600DR
MANUAL TRANSMISSION - NV5600 (Continued)

CLUTCH HOUSING
(1) Remove input shaft retainer bolts from the
clutch housing and remove retainer (Fig. 47).
(2) Remove countershaft oil guide from the coun-
tershaft front bearing bore in the clutch housing (Fig.
48).
(3) Remove countershaft front bearing race, end-
play shims and spacer from the clutch housing with
Remover 6061-1 and Handle C-4171 (Fig. 49).
(4) Remove input shaft bearing race with Remover/
Installer 8237 and Handle C-4171.
Fig. 47 INPUT SHAFT RETAINER
1 - INPUT SHAFT RETAINER
2 - CLUTCH HOUSING
Fig. 48 COUNTERSHAFT OIL GUIDE
1 - CLUTCH HOUSING
2 - COUNTERSHAFT OIL GUIDE
Fig. 49 FRONT COUNTERSHAFT BEARING RACE
1 - CLUTCH HOUSING
2 - HANDLE
3 - REMOVER
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MANUAL TRANSMISSION - NV5600 (Continued)

(5) Remove input shaft oil guide and retainer seal
(Fig. 50).
CLEANING - TRANSMISSION
Clean the gears, bearings shafts, extension/adapter
housing and gear case with solvent. Dry all parts
except the bearings with compressed air. Allow the
bearings to either air dry or wipe them dry with
clean shop towels.
INSPECTION
NOTE: Minor corrosion, nicks, or pitting can be
smoothed with 400 grit emery and polished out with
crocus cloth.
Inspect the reverse idler gear, bearings, shaft and
thrust washers. Replace the bearings if the rollers
are worn, chipped, cracked, flat-spotted or brinnelled.
Replace the gear if the teeth are chipped, cracked or
worn thin.
Inspect the front bearing retainer and bearing cup.
Replace the bearing cup if scored, cracked, brinnelled
or rough. Check the release bearing slide surface of
the retainer carefully. Replace the retainer if worn or
damaged in any way.
Inspect mainshaft bearing surfaces, splines, snap
ring grooves and threads. Replace the shaft if any
surfaces exhibit considerable wear or damage.
Inspect the countershaft and bearings. Replace the
shaft if any surfaces exhibit considerable wear or
damage.Inspect shift forks for wear and distortion. Check
fit of the sleeve in the fork to be sure the two parts
fit and work smoothly. Replace the fork if the roll pin
holes are worn oversize or damaged. Do not attempt
to salvage a worn fork. Replace shift fork roll pins if
necessary or if doubt exists about their condition.
The all bearings for wear, roughness, flat spots,
pitting or other damage. Replace the bearings if nec-
essary.
Inspect the blocker rings and fiction cones. replace
either part if worn or damaged in any way. Replace if
the friction material is burned, flaking off or worn.
Inspect synchro components wear or damage.
Replace parts if worn, cracked or distorted.
Inspect all of the thrust washers and locating pins.
Replace the pins if bent or worn. Replace the wash-
ers if worn or the locating pin notches are distorted.
Inspect the case and housing/adapter sealing and
mating surfaces are free of burrs and nicks. Inspcet
the alignment dowels in the case top surface and in
the housing/adapter are tight and in good condition.
Replace the gear case or housing/adapter if cracked
or broken.
ASSEMBLY
NOTE: Gaskets are not used in the transmission.
Use Mopar Gasket Maker or equivalent on all gear
case and extension housing sealing surfaces.
OUTPUT SHAFT
(1) Place second gear on bench with the synchro
clutch ring up.
(2) Install second gear synchro inner blocker ring
onto second gear (Fig. 51).
Fig. 50 OIL GUIDE AND SEAL
1 - INPUT SHAFT OIL GUIDE
2 - INPUT SHAFT OIL SEAL
Fig. 51 INNER BLOCKER RING
1 - INNER BLOCKER RING
2 - GEAR
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MANUAL TRANSMISSION - NV5600 (Continued)

(3) Install second gear synchro friction cone over
the blocker ring and onto second gear (Fig. 52).
(4) Install second gear synchro outer blocker ring
over the second gear synchro friction cone. Align one
of the lugs on the outer ring with a lug on the inner
ring (Fig. 53).(5) Install 1-2 synchro assembly onto the second
gear assembly (Fig. 54).
(6) Reverse assembly on the bench.
(7) Lubricate and install second gear bearing into
second gear (Fig. 55).
Fig. 52 FRICTION CONE
1 - GEAR
2 - FRICTION CONE
Fig. 53 OUTER BLOCKER RING
1 - OUTER BLOCKER RING
2 - LUG
3 - GEAR
Fig. 54 3-4 SYNCHRO ASSEMBLY
1 - SYNCHRO
2 - GEAR
Fig. 55 SECOND GEAR AND BEARING
1 - BEARING
2 - GEAR
DRMANUAL TRANSMISSION - NV5600 21 - 107
MANUAL TRANSMISSION - NV5600 (Continued)