Quote:
Originally Posted by Zman1969
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!
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The Olds rear end actually is a 8.5, but not the same as the corporate 8.5 that went into production in '71. The ring gear is 8 1/2 inches in diameter, the same as the corporate 8.5. The Olds rear end was only used in the Cutlass and 442 from '68 to '70.