1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Rear ID Tag

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May 2, 2008 | 07:26 AM

#1

SportCustomWalt

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Joined: May 2006

Posts: 168

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From: Lakeland , Florida

Rear ID Tag

This tag is off 72 short wheel base F100 rear end. The tags letters and # are WDM-AG1 2KC
3.00 9 344A I was wanting to know if it is better than WDM-S 9MA
3.25 9 313A

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Old

May 2, 2008 | 08:10 AM

#2

Freightrain

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Joined: Jan 2003

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From: Ohio

Club FTE Silver Member

3.00 is the ratio, so it will cruise easier then the 3.25 ratio. It is not a limited slip, just a std open rear.

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May 2, 2008 | 08:19 AM

#3

BobbyFord

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The WDM-A rear is a 73-79 truck diff, 31 spline, non-locking, 3.00
The WDM-S rear is a 63-72 truck diff, 28 spline, non-locking, 3.25
I would rather have the taller-geared, 31 spline chunk.

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f250, id, rear, tags

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