1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Tire size question

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Old 06-25-2016, 01:33 PM
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Tire size question

I was wondering what the best overall tire size to run with a 351w with C6 trans and 3.73 gear ratio..? How tall of a tire basically ?
 
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Old 06-25-2016, 10:22 PM
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I am partial to something in the 28-30" range, at least for the rear. Maybe an inch or two shorter in the front. Seems to fill the Wells nice.
 
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Old 06-26-2016, 09:34 AM
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I was wondering if I should be looking for a different gear set. 28 inch tall tire is the range height I was thinking of just wondering if the engine is going to be screaming at 60 miles per hour..
 
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Old 06-26-2016, 09:46 AM
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The calculator shows a rpm of 2758 @ 60 mph
 
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Old 06-26-2016, 09:54 AM
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I guess that's not as bad as I thought I'd be revving at..
 
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Old 06-26-2016, 10:04 AM
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I'm running a 3.03 with a C4. Should be good but I haven't had it at highway speed yet. I'd rather be under 2000 at cruise. I might go AOD.
 
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Old 06-26-2016, 10:09 AM
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I was thinking I should have went with the AOD as well but trying to keep my expenses down on this build and using what I had. I guess I can always make changes in the future if this becomes more of a daily driver..
 
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Old 06-26-2016, 10:25 AM
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Originally Posted by 56panelford
I was thinking I should have went with the AOD as well but trying to keep my expenses down on this build and using what I had. I guess I can always make changes in the future if this becomes more of a daily driver..
Same here, I just want to get it on the road.
 
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Old 06-26-2016, 10:28 AM
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Next spring should see me rolling, that's the plan anyways..
 
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Old 06-29-2016, 05:12 PM
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Yes, with a 30" tire at 60 mph with a 4.10:1 rear axle and an overdrive transmission (4th gear .70:1) you should turn 1929 rpm. That is pretty good as it keeps the low end grunt and gives lower noise and better fuel economy at higher speed.

Tire Height cross reference: https://tiresize.com/height-chart/

Speed Calculator: Tire Size, RPM, Speed, and Differential Ratio Calculator
 
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