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  1. J

    Anyone convert a 3.21 to 3.92?

    I'm towing a 7k lb trailer and could use some extra gears. It pulls ok just hits 5k rpm going through 1-4. Rarely gets past 5th gear on hwy. Any idea on cost and complexity to change gearing? All of my local dealers have never done it and won't quote it. :(
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