Ford 9 inch rear end tag

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04-13-2014, 06:14 PM

sonny1965

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Ford 9 inch rear end tag

When i was removing this rear end this weekend this tag was on one of
axle housing mounting studs can anyone tell me what the numbers mean? tag numbers are WDN-F 3.50 4JA 361

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04-13-2014, 07:14 PM

NumberDummy

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Quote:

Originally Posted by sonny1965

When I was removing this rear end this weekend, this tag was on one of axle housing mounting studs.
9" Rear Axle ID tag located under one of the stud nuts that retain the carrier (aka pumpkin) to the housing.

Can anyone tell me what the numbers mean? Tag numbers are WDN

-F (WDM-F) 3.50 4JA 361

No such code as WDN-F related to the 3.50-1 ratio, so it has to be WDM-F

WDM-F = Ford 9" Rear Axle - 3.50-1 - No Limited Slip - Large axle and differential bearings.

4JA = Assembled the first week (A) of September (J) 1964 (4) / A = January, M = December, the letter I is skipped.

361 = Assembly plant code.

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