Quote:
Originally Posted by big gear head
'71 Olds would have the Olds 8.5 10 bolt, which has a 12 bolt cover. It's not the same as the Chevy 12 bolt. A picture of the whole rear end, including the cover, would help.
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Freddie I know inside they do look like a 8.5 but bigger! like on steroids! seems like in 70-72 there were several different rear ends each division had till they settled on the 8.5" rear in 71 and 72 like Chevelle and Pontiac were their own 8.2" and the cutlass skylarks got 8.5" Crazy!