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sierra4x4 · 05-07-2009, 01:34 AM

I believe that the width of the carrier is different and the pinion has a smaller diameter on the truck 12 bolt. When shopping for a posi remember that around 73 gm trucks switched to the gov-loc type(the explosive one) of limited slip. 72 and older used the eaton clutch style(the good one) limited slip.

05-07-2009, 01:34 AM	#5
sierra4x4 Registered User Join Date: Jan 2009 Location: Canada Posts: 308	Re: Love Posi I believe that the width of the carrier is different and the pinion has a smaller diameter on the truck 12 bolt. When shopping for a posi remember that around 73 gm trucks switched to the gov-loc type(the explosive one) of limited slip. 72 and older used the eaton clutch style(the good one) limited slip.