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Old 06-02-2010, 01:17 PM
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Chevy 10-bolt Differential Identification

I did a search and couldn't find a previous thread, so here's my question.
I have a 51 Ford F1 with what I think is a mid-70's Chevy Nova differential.

I crawled under the truck and found three numbers. Reading them upside down with a flashlight, on the right front side, as you face forward, "GM32" Then on the right side of the axle tube also facing forward "1254333" and lastly on the right side up on the differential "F1A9" This last one was very difficult to read.

It does have 10-bolts.

Does anyone know what differential I have?

Thanks

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Last edited by Daytona F1; 06-02-2010 at 01:37 PM.
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Old 06-02-2010, 01:23 PM
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Look here for axle identity from both pictures and #'s. www.novaresource.org
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Old 06-02-2010, 05:34 PM
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I found another number.
2PJ G198 2
I think it means the rear end was made by Detroit Gear and Axel on the 168th day of the year during the 2nd shift.

The 2PJ should indicate the gearing and if it is a positraction. I can't find any site that lists a 2PJ.
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Old 06-02-2010, 07:45 PM
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It could be from one of the other X body cars, Apolo, Ventura or Omega. Have you tried here? http://www.novas.net/forums/forumdisplay.php?f=14
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