Quote:
Originally Posted by Lee Stewart
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There were at least 4 GM 10 bolt covers. The one pictured is the corporate 8.5 cover. The 8.2 BOP cover has notches at 3:00 and 9:00. The 8.2 Chevy cover has the upside down V, similar to the Chevy 12 bolt cover. The corporate 7.5 cover is more oval shaped. There were also at least 2 different car 12 bolt covers. The Chevy cover is the one pictured. The "O" rear end was used in the Cutlass and 442 from '68 to '70 and the cover looks slimilar to the corporate 8.5 10 bolt cover, but with 12 holes.