Engine: 2002-2003 360ci (5.9L) Magnum V8 245hp 335lb/ft
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It really depends what you want to do with the truck. 4.10's will give you great towing and pulling power but will greatly decrease gas milage becuas you will run higher RPM's at a given speed. That being said call summit racing and give them your truck info, they sell Richmond gears which are very good.