Infiniti G37 Coupe. Manual - part 425

DLN-14

< ON-VEHICLE REPAIR >

[REAR PROPELLER SHAFT: 3S80A-R]

REAR PROPELLER SHAFT

ON-VEHICLE REPAIR

REAR PROPELLER SHAFT

Exploded View

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Removal and Installation

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REMOVAL

1.

Move the A/T selector lever to N position and release the parking brake.

2.

Remove the floor reinforcement.

3.

Remove the center muffler with power tool. Refer to 

GI-4, "Components"

.

4.

Remove the heat plate (1).

1.

Clip

2.

Center bearing mounting bracket 
(Upper)

3.

Propeller shaft assembly

4.

Center bearing mounting bracket 
(Lower)

: Vehicle front

Refer to 

GI-4, "Components"

 for symbols in the figure.

JSDIA0007GB

JSDIA0006ZZ

REAR PROPELLER SHAFT

DLN-15

< ON-VEHICLE REPAIR >

[REAR PROPELLER SHAFT: 3S80A-R]

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5.

Put matching marks on propeller shaft rubber coupling with final
drive companion flange.

CAUTION:

For matching marks, use paint. Never damage propeller
shaft rubber coupling and final drive companion flange. 

6.

Loosen mounting nuts of center bearing mounting brackets.

CAUTION:

Tighten mounting nuts temporarily.

7.

Remove propeller shaft assembly fixing bolts and nuts.

CAUTION:

Never remove the rubber coupling from the propeller shaft
assembly.

8.

Slightly separate the rubber coupling (1) from the final drive
companion flange (2).

CAUTION:

Never damage the final drive companion flange and rubber
coupling.

9.

Remove center bearing mounting bracket fixing nuts.

CAUTION:

• The angle (A), which the third axis rubber coupling (1)

forms with the final drive companion flange (2), must be 5

°

or less.

• Never damage the grease seal (3).
• Never damage the rubber coupling.

10. Slide the propeller shaft in the vehicle forward direction slightly.

Separate the propeller shaft from the final drive companion
flange.

CAUTION:

JSDIA0009ZZ

PDIA0402E

JSDIA0010ZZ

JSDIA0128ZZ

JSDIA0137ZZ

DLN-16

< ON-VEHICLE REPAIR >

[REAR PROPELLER SHAFT: 3S80A-R]

REAR PROPELLER SHAFT

• The angle, which the third axis rubber coupling forms with the final drive companion flange,

must be 5

°

 or less.

• Never damage the grease seal.
• Never damage the rubber coupling.

11. Remove the propeller shaft assembly from the vehicle.

CAUTION:

Never damage the rear oil seal of transmission.

INSTALLATION

Note the following, and install in the reverse order of removal.
• Install center bearing mounting bracket (Upper) (1) with its arrow

mark (A) facing forward.

• Adjust position of center bearing mounting bracket (1, 2) sliding

back and forth to prevent play in thrust direction of center bearing
insulator (3). Install bracket to vehicle.

• Align matching marks to install propeller shaft rubber coupling to

final drive companion flange.

• After assembly, perform a driving test to check propeller shaft

vibration. If vibration occurred, separate propeller shaft from final
drive. Reinstall companion flange after rotating it by 120, 240
degrees. Then perform driving test and check propeller shaft vibra-
tion again at each point.

• If propeller shaft or final drive has been replaced, connect them as

follows:

- Install the propeller shaft (1) while aligning its matching mark (A)

with the matching mark (B) on the joint as close as possible.

CAUTION:

JPDID0126ZZ

JSDIA0009ZZ

JSDIA0077ZZ

REAR PROPELLER SHAFT

DLN-17

< ON-VEHICLE REPAIR >

[REAR PROPELLER SHAFT: 3S80A-R]

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• The angle (A), which the third axis rubber coupling (1) forms

with the final drive companion flange (2), must be 5

°

 or less.

• Never damage the grease seal (3).
• Never damage the rubber coupling.
• Never damage the rear oil seal of transmission.
• Never damage the rubber coupling, protect it with a shop

towel or equivalent.

Inspection

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APPEARANCE

• Check propeller shaft for bend and damage. If damage is detected, replace propeller shaft assembly.

PROPELLER SHAFT RUNOUT

• Check propeller shaft runout at measuring points. If runout

exceeds specifications, replace propeller shaft assembly. For mea-
suring point, refer to 

DLN-13, "Inspection"

JOURNAL AXIAL PLAY

• As shown in the figure, while fixing yoke on one side, check axial

play of joint. If outside the standard, replace propeller shaft assem-
bly. 

CAUTION:

Never disassemble joints.

CENTER BEARING

• Check center bearing for noise and damage. If noise or damage is detected, replace propeller shaft assem-

bly.

CAUTION:

Never disassemble center bearing.

JSDIA0137ZZ

Limit

Propeller shaft runout

: Refer to 

DLN-18, "Propel-

ler Shaft Runout"

.

JSDIA0078ZZ

Standard

Journal axial play

: Refer to 

DLN-18, "Journal 

Axial Play"

.

SPD874