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Old 05-30-2017, 09:51 AM   #11
Keith Seymore
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Join Date: May 2009
Location: Motor City
Posts: 9,147
Re: 1976 K20 - Factory front Posi?

No; no factory front posi on these trucks.

https://www.gmheritagecenter.com/doc...olet-Truck.pdf

RPO G80 (if that is what he is quoting) applies to the rear axle only.

K
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