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Old 11-13-2010, 08:48 PM   #3
russgt
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Join Date: May 2008
Location: Waukesha, WI
Posts: 904
Re: Decoding 1974 posi gears

Check in the glovebox, there should be some more axle info. Yes the G80 code has meant posi or locker in the trucks for quite a few years. The truck should have a dana 44 front and not a 10 bolt, if it is a 10 bolt it was swapped in from a newer truck.
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