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Old 11-05-2019, 09:40 PM   #13
Mike C
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Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,709
Re: 1976 14 bolt posi questions

Interested in seeing what you find, but looks like G86 to me and not G56?

Seems to be some disagreement so linked it for you to make up your own mind.

Found this Googling on the square body sight:

1973 axle:
G80 - positraction
G86 - Eaton locking diff
G87 - maximum traction (C30 camper special with dual rear wheels only)

https://www.gm***************/thread...rential.22489/
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