tire size
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Mountain Pass
Joined: Feb 2011
Posts: 101
Likes: 26
From: Indiana
tire size
Did a thread search but couldn't find anything. The FB group are saying 37x12.5x20s fit with rubbing on a stock truck. I don't want rubbing, so is anyone running or does anyone know if 37x11.5x20 s will fir rub free?
Cargo Master
Joined: Mar 2021
Posts: 2,044
Likes: 1,336
For 37s the solution to no run is to have less backspacing than the stock wheels at +40mm.
I went with aftermarket wheels (finally found a set I like) but o stop the rub myself.
Mountain Pass
Joined: Jul 2021
Posts: 150
Likes: 108
From: Newark, Delaware
My son in law is running 37 x 11.5 x 20s with 1/2 inch spacer and still rubs at full lock.
1st Gear
Joined: Dec 2023
Posts: 1
Likes: 0
23 f350
So I got a new 23 f350 srw 6.7 lariat. I was looking to upgrade the tires on it. I am going to be putting a 2.5 inch leveling kit on in the near future. I never liked how much the tires stick out on my old truck. I remember seeing a truck a couple years ago that had tall tires but not too much wider than the factory tires so they really didn’t stick out much past the fenders. Obviously I want to put the tallest tires I can on it. Anyone have any suggestions on what size I should look into?
Logistics Pro
Joined: Sep 2002
Posts: 4,410
Likes: 1,015
From: Central KY
I have a 19, so they sit up higher from the factory than the 20+ trucks. I also have a 1.5" level in the front. My wheels are 18x9 with +12 offset and they are PERFECT. They don't stick out much at all, keep the tires flush with the fenders. My tires are 33x12.50 but they will be replaced with 35x12.50 next year because the 33s are actually quite a bit shorter than the OE tires that came on my truck and my speedo is now reading 3 MPH too fast. A 35x12.50 will be perfect.
As far as rubbing, I have the Husky splash guards and my 33s clear them by about 1.5" so a 35 will be the tallest I can go without rubbing. For a 37 I would have to remove the splash guards and possibly trim a little.
As far as rubbing, I have the Husky splash guards and my 33s clear them by about 1.5" so a 35 will be the tallest I can go without rubbing. For a 37 I would have to remove the splash guards and possibly trim a little.
Cargo Master
Joined: Mar 2021
Posts: 2,044
Likes: 1,336
I have a 19, so they sit up higher from the factory than the 20+ trucks. I also have a 1.5" level in the front. My wheels are 18x9 with +12 offset and they are PERFECT. They don't stick out much at all, keep the tires flush with the fenders. My tires are 33x12.50 but they will be replaced with 35x12.50 next year because the 33s are actually quite a bit shorter than the OE tires that came on my truck and my speedo is now reading 3 MPH too fast. A 35x12.50 will be perfect.
As far as rubbing, I have the Husky splash guards and my 33s clear them by about 1.5" so a 35 will be the tallest I can go without rubbing. For a 37 I would have to remove the splash guards and possibly trim a little.
As far as rubbing, I have the Husky splash guards and my 33s clear them by about 1.5" so a 35 will be the tallest I can go without rubbing. For a 37 I would have to remove the splash guards and possibly trim a little.
my 23 could clear the 37s better even at stock height because the radius arms have a lot more clearance built into them. At worst I think you could put a 1” spacer on and be trouble free on the new trucks. But I stuck with 295/65s on stock wheels this time since I tow heavier sometimes. But I do love the look of a 37
Logistics Pro
Joined: Sep 2002
Posts: 4,410
Likes: 1,015
From: Central KY
Actually, there are four things that can make them rub. Tire diameter, tire width, wheel width, and wheel offset. All of those come into play. What I usually do is take lots of measurements with the stock setup and see what my clearance is at the pinch weld/splash guard and also at the front bumper. Then I can crunch the math on the aftermarket setup I want to make sure it'll work before I buy.
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Cargo Master
Joined: Mar 2021
Posts: 2,044
Likes: 1,336
Actually, there are four things that can make them rub. Tire diameter, tire width, wheel width, and wheel offset. All of those come into play. What I usually do is take lots of measurements with the stock setup and see what my clearance is at the pinch weld/splash guard and also at the front bumper. Then I can crunch the math on the aftermarket setup I want to make sure it'll work before I buy.
and the main component affecting rub with the +40 offset 20x8 wheel is those radius arms of which they improved the clearance in 2023 and regardless of how high you lift a 17-22 truck assuming factory wheels and the 37x12.50 it’s going to rub even with an 8” lift
if you wanna talk aftermarket wheels and other diameter/width tires then taking measurements isn’t a bad idea
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Cargo Master
Joined: Jun 2011
Posts: 2,272
Likes: 208
From: Cincy area
I’m torn on what direction I want to go. I don’t hate the oem wheels on my 24 but I don’t like the stock backspacing. They’re painted to match the truck which I kinda like. I want to find maybe a 37x13.50 20 and use a 2” hub centric back spacer. I don’t mind if the tires are outside the wheel wells an inch or so. I have to get the 2.5” level kit first. Then maybe down the road get aftermarket wheels.
Fleet Mechanic
Joined: Dec 2012
Posts: 1,563
Likes: 533
From: DFW
I actually like the stock wheels on my '23 and I think they look really good with 37 x 12.50's - that's the route I'll go when I use up the Bridgestone's. I'll run a 1.5" level on the front and be done with it. I'm not monkeying with too much suspension this go'round. I'm gonna see how long I can make this truck last... we'll see.
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