Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
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Is that accurate regarding it being the only factory 4.56 one made?
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#2
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That don’t seem right. A lot of racing in 1969. Street racers had to be ordering 4:56 and 4:88
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#3
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Like the 427 COPO option, the special gear ratio options may not have been known by dealerships or customers. My ‘69 Chevelle’s OO put 4.88 gears in as soon as he hit the strips.
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Sam... ![]() |
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