Thread: 12 bolt 0r S60
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Old 10-05-2007, 05:57 PM   #17
IROCdan330
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Quote:
Originally Posted by Injuneer View Post
According to Evan Smith's article in National Dragster a few year ago - Drivetrain loss:

Dana 60 - 5%

GM 12-bolt - 7%

Ford 9-inch - 10%
i thought it was a dana 44?
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87 iroc with the usual go fast stuff
heavier than your half ton.
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