Quote:
Originally Posted by SSDiv6
...or a 7.17 ratio... 
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My Brother ran a Dana with 6:83 and a 2:75 low gear in IHRA Production with a 283c.i. 1958 wagon . The car was a tank at #3839 and low gear was a short ride lol, he shifted at 10,500 rpm. Never broke a gear in the Dana.