01-27-2011, 08:42 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
On earlier diffs that may have been 7 and 21 teeth with a 3.0:1 ratio. Not sure on later ones like yours.
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