Jeep Wrangler TJ. Manual — part 479
(2) Push 5-6 synchronizer sleeve (1) (Fig. 20) down
on hub and remove detents (2) springs and balls.
(3) Remove 5-6 synchronizer sleeve (1) (Fig. 21)
from hub (2).
(4) Remove 5-6 synchronizer hub (1) (Fig. 22) snap
ring (2).
NOTE: All snap rings are select fit from the factory.
(5) Remove 5-6 synchronizer hub (1) (Fig. 23) and
sixth gear synchronizer rings (2) with a three jaw
puller. Place puller jaws under sixth gear synchro-
nizer rings (2).
(6) Remove sixth gear (1) (Fig. 24) and bearing (2).
Fig. 21 5-6 SYNCHRONIZER SLEEVE
1 - SYNCHRONIZER SLEEVE
2 - HUB
Fig. 22 5-6 SYNCHRO HUB SNAP RING
1 - SYNCHRONIZER HUB
2 - SNAP RING
Fig. 23 5-6 SYNCHRO HUB
1 - 5-6 SYNCHRONIZER HUB
2 - SIXTH GEAR SYNCHRONIZER RINGS
Fig. 24 SIXTH GEAR & BEARING
1 - SIXTH GEAR
2 - BEARING
TJ
MANUAL TRANSMISSION - NSG370
21 - 7
MANUAL TRANSMISSION - NSG370 (Continued)
(7) Third gear (1) (Fig. 25) and fourth gear (2) are
serviced with the mainshaft only.
(8) Remove mainshaft from Fixture 9648. Turn fix-
ture over in vise and set opposite end of mainshaft in
the fixture.
(9) Remove reverse gear (1) (Fig. 26) synchronizer
sleeve (2) off synchronizer hub.
(10) Remove reverse synchronizer hub (1) (Fig. 27)
detents (2).
(11) Remove reverse synchronizer hub (1) (Fig. 28)
with three jaw puller (2). Place puller jaws in hub
detent openings.
Fig. 25 3-4 GEAR
1 - THIRD GEAR
2 - FOURTH GEAR
Fig. 26 REVERSE GEAR SYNCHRO SLEEVE
1 - REVERSE GEAR
2 - SYNCHRONIZER SLEEVE
Fig. 27 REVERSE SYNCHRO HUB DETENT
1 - SYNCHRONIZER HUB
2 - DETENTS
Fig. 28 REVERSE SYNCHRO HUB
1 - SYNCHRONIZER HUB
2 - THREE JAW PULLER
21 - 8
MANUAL TRANSMISSION - NSG370
TJ
MANUAL TRANSMISSION - NSG370 (Continued)
(12) Remove reverse gear (1) (Fig. 29) synchronizer
ring (2).
(13) Remove reverse gear (1) (Fig. 30) and bearing
(2).
(14) Remove reverse gear bearing race (1) (Fig.
31), thrust washer (2) and first gear (3) with puller
(4). Place puller jaws under first gear (3).
(15) Remove first gear bearing.
(16) Remove first gear synchronizer rings.
(17) Push 1-2 synchronizer sleeve down on hub.
Remove 1-2 synchronizer hub (1) (Fig. 32) detents
(2), balls and springs.
Fig. 29 REVERSE SYNCHRONIZER
1 - REVERSE GEAR
2 - SYNCHRONIZER FRICTION RING
Fig. 30 REVERSE GEAR
1 - REVERSE GEAR
2 - BEARING
Fig. 31 FIRST GEAR
1 - BEARING RACE
2 - THRUST WASHER
3 - FIRST GEAR
4 - PULLER
Fig. 32 1-2 SYNCHRO DETENT
1 - 1-2 SYNCHRONIZER HUB
2 - DETENTS
TJ
MANUAL TRANSMISSION - NSG370
21 - 9
MANUAL TRANSMISSION - NSG370 (Continued)
(18) Remove 1-2 synchronizer sleeve (1) (Fig. 33)
from synchronizer hub (2).
(19) Remove 1-2 synchronizer hub (1) (Fig. 34)
snap ring (2).
(20) Remove 1-2 synchronizer hub (1) (Fig. 35),
synchronizer rings and second gear (2) off shaft with
a press. Place second gear (2) on press plates and
press shaft through 1-2 synchronizer hub (1), syn-
chronizer rings and second gear (2)
COUNTERSHAFT
The countershaft (1) and 3-4 synchronizer (2) are
serviced as an assembly only (Fig. 36).
Fig. 33 1-2 SYNCHRO SLEEVE
1 - 1-2 SYNCHRONIZER SLEEVE
2 - SYNCHRONIZER HUB
Fig. 34 1-2 SYNCHRO HUB SNAP RING
1 - SYNCHRONIZER HUB
2 - SNAP RING
Fig. 35 SECOND GEAR
1 - SYNCHRONIZER HUB
2 - SECOND GEAR
Fig. 36 COUNTERSHAFT
1 - BEARING SURFACES
2 - 3-4 SYNCHRONIZER ASSEMBLY
21 - 10
MANUAL TRANSMISSION - NSG370
TJ
MANUAL TRANSMISSION - NSG370 (Continued)
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