Mike Brichta Posted May 23, 2020 Share Posted May 23, 2020 I need some help with identifying a 12-bolt rear. I removed it from a 70 El Camino but I can't say for sure that it is original to the car. It has no axle codes on it and the rear cover looks different. It doesn't have the usual "V" shaped cover. Could the cover just be the wrong one? Are there any other places to look for numbers to figure out what it is? Thanks!! Quote Link to comment Share on other sites More sharing options...
Mike Brichta Posted May 24, 2020 Author Share Posted May 24, 2020 I pulled the cover off to count the number of bolts holding the ring gear to the carrier and the count is "10". Therefore, I think it is technically a "10 Bolt" rear with a 12 bolt cover?? From what I am reading it sounds like it could be from a late 60s Pontiac. Does that sound about right? The only number I can find is "CFD8" on the housing. Strange. Thanks!! Mike Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted May 24, 2020 Share Posted May 24, 2020 Hey Mike. Sounds and looks like an Oldsmobile "12 bolt" Pontiac mainly relied on the 10 bolt. The only 12 bolts used in Pontiacs from the factory were the Chevy 12 bolts used only in the 71-72 HO 455 GTOs. Quote Link to comment Share on other sites More sharing options...
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