Guest Posted June 21, 2003 Share Posted June 21, 2003 I have pretty much decided I need to do a gear change in the replacement differential I bought. This differential is a Mopar 8 1/4" from a 1974 Dodge Charger. The ring gear has 46 teeth and the pinion 17 teeth. This equates to a 2.71/1 ratio. I need something in the range of a 3.91/1 or close. With my overdrive transmission at the 3.91/1 ratio I should have a good cruising speed at moderate engine RPM,s. Do any of you old Mopar folks have anything sitting around that might work for me? Thanks, Don Coatney Link to comment Share on other sites More sharing options...
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