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I want bigger tires, what size can I fit.

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3.6K views 12 replies 5 participants last post by  mlgjellybean123  
#1 ·
Hi guys,
My ford F350 2016 6.7 without lift. Original tire size 275/70R18
I want bigger tires, what size can I fit.
 
#12 ·
The issue with your current setup is the stock tires are a little larger than 33x10.5 and anything bigger won't fit unless you keep the 10.5 width. You need to have a size in mind, and then do what it takes to mitigate the rub. I choose to express sizes in inches for ease of english unit expression. If you want a 35, most common sizes will be in 12.5 width. You can find a more narrow tire but it sounds like you want taller and wider. If you go any wider than 10.5 you'll be rubbing without wheel change. Stock is something like +40mm. If you go to a 0 offset your tire will stick out. Are you OK with that? I'm running -18 and I get water/dirt/rock spray along the body. I don't mind because of my lift and the change in vehicle handling characteristics with a slightly wider stance. You might want to consider a leveling kit to push the front end up a little bit for the larger tire size. If I wasn't going to level/lift I would stay with the 33s. The looks wouldn't sway me on the cost and hassle of new wheels, rubber, rubbing, etc. You're either going to push the wheel out of the fender or lift/level to keep the wheel in the well. Your choice though.

Stay with the 33s. Enjoy your truck. Or go big on wheels and tires and do what it takes to fit them.
 
#13 ·
If you level your truck many guys are running 35s just fine, you'll rub a bit at full lock but that's no big deal, rubbing isn't the end of the world. The offset Calif is talking about is important, but gets interesting. Too much and you'll rub on the fender and bumper. Too little and you'll rub on the fender liner and radius arm. But there also isn't really a way to go bigger and not rub either way, unless you want a 24 inch custom lift to fit your 42s lol. In general, you can deal with too much offset (lots of negative offset) with a lift or a cutoff wheel to your bumper and fender. Too little offset (positive or small negative number) is only able to be fixed with spacers (essentially going more negative offset), as a lift will leave the radius arm in the way and you'll rub there anyways.

But I have 35s on 14 wides on a leveled truck, and I can't turn worth of anything soooo