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Old 06-09-2011, 09:27 PM

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Tire Size Advice

Hey all...

I have a 2010 CCSB F350 4x4 with factory 20 inch rims and 3.55 gears. I've done lots of reading but couldn't find an answer. According to the window sticker i have a snow plow package and from what i read that is basically a factory leveling kit or is it ? I believe my factory tires are close to 34" so i'm guessing 35's would be no problem...Would i be able to clear 37's ? I am leaning towards the Toyo MT...If 37's would clear, can anybody tell me how they would do with the 3.55's ? I don't tow nothing heavy and will be adding a tuner soon with deletes...Thanks
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Old 06-09-2011, 11:00 PM
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I can't tell you anything about the plow package without looking it up. But I can speak to the tires. I'd be very leery about putting 37s on your truck as is. I have Toyo M/T 37X13.5 R20 LT on my truck with a 6" lift kit. Most kit manufacturers won't even recommend a 37" tire on an 6" lift unless it is fairly stiff. As it is now, I'm looking to do an 8"coil-over system with a 37" tire later this year, just to be safe. I do plan on hitting some terrain that will use all of the travel my suspension was built for. I guess if you went down a flat road with no bumps you might be OK, but then whats the point in having a powerstroke for that? lol. The gearing you have for a 35" or even a 37" should be fine for the average applications.

I think that even if you do have the leveling kit on-board, I'd be going to a tire dealership and get them to sign off on what you want to do, then if you rip through a tire and take off your front quarter panel, they have to take the fall for it. Good luck!

Last edited by irehog66; 06-09-2011 at 11:03 PM. Reason: spelling
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Old 06-10-2011, 10:37 AM
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35" no problem, Its recomended on a '10 to have a min 4" lift for 37", Toyos are true to size..some can run lower height but will rub esp if you get off road.
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