01-06-2018, 01:25 AM | #11 |
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Join Date: Dec 2013
Location: Northern, MT
Posts: 569
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Re: 75 Dually build
I ran mine with a 4.10 gear ratio for a few years and eventually went to 3.55s. Even in Overdrive and going down a big hill I couldn't get mine over 65 MPH. Keep up the good work on this and the cab swap project.
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1987 GMC R2500 SC 454 T400 1988 Chevy R30 CC DRW 12 valve Cummins NV4500 GearVendors |
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air bags, alcoas, chevy, dually, lowered |
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