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Old 08-09-2009, 02:59 PM
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4pipes 4pipes is offline
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Join Date: Jan 2005
Location: saratoga, ca
Cobra Make, Engine: Kirkham #185, Shelby Alloy 482; sold
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I wouldn't worry about the weight. After experiencing the problems of differential thermal expansion in the aluminum differential case, I'd go with the iron vs aluminum for a transmission case until they start making aluminum gears and shafts.
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