Nissan Xterra. Manual - part 636

GEAR COMPONENTS

TM-57

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

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1. Measure the clearance (A) at 2 points or more diagonally oppo-

site using a feeler gauge when pressing baulk ring toward clutch

gear taper cone. Then calculate the mean value.

2. Measure the clearance (B) at 2 points or more diagonally oppo-

site using a feeler gauge. Then calculate the mean value.

3. Measure the clearance (C) at 2 points or more diagonally oppo-

site using a feeler gauge when pressing baulk ring toward clutch

gear taper cone. Then calculate the mean value.

BEARINGS

If the bearing does not rotate smoothly or the contact surface on ball

or race is damaged or peeled, replace with new ones.

Assembly

INFOID:0000000009485383

GEAR COMPONENTS

1. Install 5th-6th synchronizer hub assembly according to the following.
a. Install 5th-6th coupling sleeve to 5th-6th synchronizer hub.

CAUTION:

• Do not reuse 5th-6th synchronizer hub and 5th-6th coupling sleeve. 

• Replace 5th-6th synchronizer hub and 5th-6th coupling sleeve as a set. 

Clearance (A)

Standard value

Refer to 

TM-72, "Baulk Ring 

Clearance"

Limit value

Refer to 

TM-72, "Baulk Ring 

Clearance"

PCIB0887E

Clearance (B)

Standard value

Refer to 

TM-72, "Baulk Ring Clear-

ance"

Limit value

Refer to 

TM-72, "Baulk Ring Clear-

ance"

PCIB1329E

Clearance (C)

Standard value

Refer to 

TM-72, "Baulk Ring 

Clearance"

Limit value

Refer to 

TM-72, "Baulk Ring 

Clearance"

PCIB0888E

SMT418A

TM-58

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

GEAR COMPONENTS

• Be careful with the orientation 5th-6th coupling sleeve.

• Be careful with the orientation 5th-6th synchronizer hub.

b. Install shifting inserts and spread springs to 5th-6th synchronizer

hub.

CAUTION:

• Do not install spread spring hook onto the same shifting

insert.

• Be careful with the shape of reserve shifting insert to

avoid misemploy.

PCIB1247E

PCIB1248E

SCIA1600E

PCIB0608E

GEAR COMPONENTS

TM-59

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

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c. Press in 5th-6th synchronizer hub assembly, 6th baulk ring, 6th

main gear and 6th needle bearing using Tool.

CAUTION:

• Apply gear oil to 6th baulk ring and 6th needle bearing.

• Be careful with the orientation 5th-6th coupling sleeve.

NOTE:

5th and 6th baulk rings have three spaces that four gear teeth

are missing as shown.

2. Select and install a snap ring so that the end play comes within

the standard value. Refer to 

TM-72, "Snap Rings"

.

CAUTION:

Do not reuse snap ring.

3. Install 1st-2nd synchronizer hub assembly according to the following.
a. Install 1st-2nd coupling sleeve to 1st-2nd synchronizer hub.

CAUTION:

• Do not reuse 1st-2nd coupling sleeve and 1st-2nd synchronizer hub.

• Replace 1st-2nd synchronizer hub and 1st-2nd coupling sleeve as a set. 

• Be careful with the orientation 1st-2nd coupling sleeve.

Tool number

: ST30911000 ( — )

PCIB1249E

PCIB1330E

End play 

: 0 - 0.10 mm (0 - 0.004 in)

PCIB0609E

PCIB1250E

TM-60

< UNIT DISASSEMBLY AND ASSEMBLY >

[6MT: FS6R31A]

GEAR COMPONENTS

• Be careful with the orientation 1st-2nd synchronizer hub.

b. Install spread springs and shifting inserts to 1st-2nd synchro-

nizer hub.

CAUTION:

• Do not install spread spring hook onto the same shifting

insert.

• Be careful with the shape of reverse shifting insert to

avoid improper assembly.

c.

Press in 1st-2nd synchronizer hub assembly, 2nd inner baulk

ring, 2nd synchronizer cone and 2nd outer baulk ring, 2nd main

gear and 2nd needle bearing using Tool.

CAUTION:

• Apply gear oil to 2nd needle bearing, 2nd inner baulk ring,

2nd synchronizer cone and 2nd outer baulk ring, 1st-2nd

synchronizer hub spline of mainshaft.

• Replace 2nd inner baulk ring, 2nd synchronizer cone and

2nd outer baulk ring as a set. 

• Be careful with the orientation 1st-2nd coupling sleeve.

NOTE:

PCIB1251E

SCIA1600E

PCIB0608E

Tool number

: ST27861000 ( — )

PCIB1253E