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2008 Ford F-350 Super Duty Question: Ring and Pinion change



Visitor, 6.4L V8 Diesel Turbo, Raleigh, NC, March 22, 2011, 17:07

Who has successfully changed out differential gear to higher gear? I want to go from 4.30 to 3.73 gear ratio to improve fuel economy since I am no longer planning to haul heavy 5th wheel.

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  • Answer #1

    March 22, 2011, 17:14

    If is 4x4 then will need to do both axles. This is a big job and best left to experts. This is nothing you want to get into if have no experience

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