Nissan Frontier D40. Instruction — part 1040
TM-58
< PREPARATION >
[6MT: FS6R31A]
PREPARATION
Puller
• Removing reverse synchronizer hub as-
sembly
• Removing reverse counter gear
• Removing reverse main gear
Drift
Removing counter end bearing
a: 32 mm (1.26 in) dia.
Tool name
Description
NT077
LCIA0362E
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
TM-59
< SYMPTOM DIAGNOSIS >
[6MT: FS6R31A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000005273961
Use the chart below to help you find the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
Reference page
SUSPECTED PARTS
(Possible cause)
OIL (Oi
l l
e
v
e
l
is
lo
w
.)
OIL (W
ro
ng
oi
l.)
OIL (Oi
l l
e
v
e
l
is
hi
gh
.)
GASKET (Damaged)
OI
L
SEAL
(W
orn
o
r
da
ma
ge
d)
SHIFT CO
NTRO
L LINKAGE (W
orn)
CHECK PLUG
R
E
TURN SPRING AND CHECK
BALL (W
orn or damaged)
SHIFT
FORK (W
orn
)
GEAR (W
orn
or
da
ma
ge
d)
BEARING (W
orn or damaged)
BAULK
RING (W
orn
or
dam
a
g
e
d
)
INSER
T SPRING (Damaged)
Symptoms
Noise
1
2
3
3
Oil leakage
3
1
2
2
Hard to shift or will not shift
1
1
2
2
2
Jumps out of gear
1
1
2
2
TM-60
< SYMPTOM DIAGNOSIS >
[6MT: FS6R31A]
DESCRIPTION
DESCRIPTION
Cross-Sectional View
INFOID:0000000005273962
DOUBLE-CONE SYNCHRONIZER
1.
Mainshaft
2.
Reverse synchronizer hub
3.
Reverse coupling sleeve
4.
Reverse main gear
5.
4th main gear
6.
3rd main gear
7.
1st main gear
8.
1st-2nd coupling sleeve
9.
1st-2nd synchronizer hub
10. 2nd main gear
11.
6th main gear
12. 5th-6th coupling sleeve
13. 5th-6th synchronizer hub
14. Main drive gear
15. Front cover
16. Transmission case
17. Counter gear
18. Filler plug
19. 3rd counter gear
20. 3rd-4th synchronizer hub
21. 3rd-4th coupling sleeve
22. Drain plug
23. Adapter plate
24. 4th counter gear
25. Reverse idler gear
26. Reverse idler shaft
27. Reverse counter gear
28. OD gear case
29. Rear extension
PCIB1297E
DESCRIPTION
TM-61
< SYMPTOM DIAGNOSIS >
[6MT: FS6R31A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
The 1st, 3rd and 4th gears are equipped with a double-cone synchronizer to reduce the operating force of the
shift lever.
TRIPLE-CONE SYNCHRONIZER
The 2nd gear is equipped with a triple-cone synchronizer to reduce the operating force of the shift lever.
PCIB0594E
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