Removal and Installation: Notes

CAUTION: Verify identification stamp of replacement frequency put in the lower part of gear carrier to determine replacement for collapsible spacer when replacing front oil seal. Refer to "Identification Stamp Of Replacement Frequency Of Front Oil Seal". If collapsible spacer replacement is necessary, remove final drive assembly and disassemble it to replace front oil seal and collapsible spacer. Refer to Removal and Installation and Disassembly .

NOTE: The reuse of collapsible spacer is prohibited in principle. However, it is reusable on a one-time basis only in cases when replacing front oil seal.

Identification Stamp Of Replacement Frequency Of Front Oil Seal

The diagonally shaded area in the figure shows stamping point for replacement frequency of front oil seal.

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The following table shows if collapsible spacer replacement is needed before replacing front oil seal.

When collapsible spacer replacement is required, disassemble final drive assembly to replace collapsible spacer and front oil seal. Refer to Disassembly .

Stamp	Collapsible spacer replacement
No stamp	Not required
"0" or "0" on the far right of stamp	Required
"01" or "1" on the far right of stamp	Not required

CAUTION: Make a stamping after replacing front oil seal.

After replacing front oil seal, make a stamping on the stamping point in accordance with the table below in order to identify replacement frequency.

CAUTION: Make a stamping from left to right.

Stamp before stamping	Stamping on the far right	Stamping
No stamp	0	0
"0" (Front oil seal was replaced once.)	1	01
"01" (Collapsible spacer and front oil seal were replaced last time.)	0	010
"0" is on the far right. (Only front oil seal was replaced last time.)	1	...01
"1" is on the far right. (Collapsible spacer and front oil seal were replaced last time.)	0	...010

Make a judgment if a collapsible spacer replacement is required.
Drain gear oil. Refer to Draining .
Remove final drive assembly. Refer to Removal and Installation .
NOTE:
- It is necessary to separate the rear drive shaft from final drive to measure the total preload.
- It is necessary to remove final drive assembly to separate the rear drive shaft from final drive.
Measure the total preload with the preload gauge (A) [SST: ST3127S000 (J-25765-A)].

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NOTE: Record the preload measurement.
Put matching mark (B) on the end of the drive pinion. The matching mark should be in line with the matching mark (A) on companion flange (1).

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CAUTION: For matching mark, use paint. Never damage companion flange and drive pinion.
Remove drive pinion lock nut using the flange wrench. (commercial service tool)

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Remove companion flange using pullers (commercial service tool).

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Remove front oil seal using the puller [SST: KV381054S0 (J-34286)].