Need help with rear differential decoding!

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03-16-2003, 07:16 PM

Matts72

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Need help with rear differential decoding!

I need help figuring out what gear ratio my rear differential is.

on the tag:
TDM CG 87A OR 4
75 9 360A OR 4

ON THE HOUSING / CARRIER
DW S OR 5 WC 2148

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03-16-2003, 10:15 PM

LxMan1

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Need help with rear differential decoding!

I bet if you look real close to the nut holding on, you will find a "2.". I'm pretty sure that you have a 2.75 open 9" rear end.
Jimmy

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03-17-2003, 12:00 AM

Mil1ion

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Need help with rear differential decoding!

TDM ?

Are you sure it isn't WDM ?

I've never seen a TDM rear code before.

Here's a site.

http://www.ridgenet.net/~biesiade/Fordrears.html

It is a 2.75:1 9" rear gear though.
All the other stuff is explained on the page I linked to

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