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Old 04-16-2001, 09:24 PM
whiatt whiatt is offline
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Join Date: Feb 2001
Posts: 26
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Well, I'm droppin' the Dakota soon (Full Hotchkis). Currently, I have 4.10 gears, with 275/60R17. I'm thinking about going with 275/55R17's, but am getting worried about the gears! Currently I'm running these RPM's at MPH:
70MPH - 2410
80MPH - 2755
90MPH - 3099

With the new tires, I'd be running:
70MPH - 2501
80MPH - 2859
90MPH - 3216

Is this ok? How much will this hurt my mileage? How about a 1/4 mile run? Would it improve it, or hurt it? Any advice is welcome! Thanks for your help!

william
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Old 04-17-2001, 12:04 AM
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rumblefish360 rumblefish360 is offline
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Well, its not really alot of diff there. technically <SP> you'll loss mileage and gain pick up speed. But, it will be small. As far as 1/4 times, it depends on trap rpm now vs. the new tire size dia.
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