When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
315’s probably won’t rub. If they do, it would only be at full turn and different offset wheels would fix it.
My buddy runs 46” tall tires on like 6” of lift. He doesn’t care about rubbing. Lol.
Those are some big tires!
What size rim do you recommend? I think my buddy has 20 inch rims on his 315's that he's selling
Or can a 315 fit a 16-in rim? Sorry, I'm still new to the whole tire measurement thing. And I don't know what size rubber can fit on what size rims yet.
Edit* scratch all that. I did some research. 315/75 r16. 315 is the tread width in millimeters. 75 means 75% of the tread width is how tall the sidewalls are. R16 would be how tall the rims are. You would multiply 315 by 75% to get your sidewall height, multiply that by two because there's two side walls, divide that by 25.4 to get your inches and then add the size of your rim for height of tire. I think I have all that right. So for 3:15 to fit, they would fit on a 16-in rim but they would have to be a wider rim then the stock 7-in wide rims. So 315/75 r16 would be a 34.6 inch tall tire. Do I have all that right?
These are 37" humvee tires on a 4" lift. 16.5" wheels.
So, you can fit almost any size tire on any height of rim, it just has to do with how wide the rim is if it can handle it?
And in terms of clearance on my truck, the issue isn't the height of tire as much but instead the width? So some 315/75 r16's would look good on my truck then?
I have to agree that that looks great on the stock height truck. I just don't want to rub the leaf springs. I like the lifted look but, don't know how I would fit 315's without rubbing the springs. I have a buddy selling a brand new set of 315's with rim and tire for 1200$. His truck was totaled and he doesn't need them on his new truck. But what could I do to avoid rubbing? I don't want tire spacers. I hate the way tires that stick out the side of the truck look.
I always very much so appreciate all of you showing me all the possibilities before I buy something. Without yall I'd buy stuff and not be happy with it. Y'all give me a lot of insight on things and I can't thank y'all enough!
On my 2003 pictured above the 295's barely kissed the leaf springs at full lock turned left only.
if the 315's do rub, it wont be much at all and only at full lock.
On my 2001 with same springs wheels and 295 tires as the 2003 they do not rub.
So, you can fit almost any size tire on any height of rim, it just has to do with how wide the rim is if it can handle it?
And in terms of clearance on my truck, the issue isn't the height of tire as much but instead the width? So some 315/75 r16's would look good on my truck then?
These are 33 x 12.50 x 17 which is about 315 65 17. The height of the wheel well at it's highest point is 41.5 front, 42.5 rear. My hotshot rig is stock height and the front wheel well height is 37.5 with LT235/85R16's.
The 315/75R16's would be an inch taller. I think they would look even better than mine with taller sidewalls. Note the shiny spot on my leaf springs: You can barely tell it, but full left or right turns will have them rub here a little. Don't see anything on the tires, just a little rust removal.
So, you can fit almost any size tire on any height of rim, it just has to do with how wide the rim is if it can handle it?
And in terms of clearance on my truck, the issue isn't the height of tire as much but instead the width? So some 315/75 r16's would look good on my truck then?
No, that’s not how it works. There are two tire size nomenclatures commonly found in the pickup world.
The ones that look like 37x12.5R16.5 mean it is 37 inches in diameter, 12.5 inches wide and mount on 16.5 inch wheels. All three of these numbers can vary and denote different tire sizes. A tire that reads 37x12.50R20 will NOT mount on any other size wheel except a 20 inch wheel. The other thing to look out for with tires using this measurement system is the Load Range.
The ones that look like 315/75R16 means it has a width of 315mm, the height of the sidewalls is 75% of the width and it mounts on a 16” wheel. These three numbers can vary and denote different tire sizes. To further confuse things with this measurement system, you sometimes see tires (usually for cars) with something like 225/55HR17. That extra letter H is the speed rating. There are speed ratings ranging from L to Z. These tires can sometimes have the load range tacked on to the end like this: 315/75R16E. Sometimes the application is added as a prefix like this: LT315/75R16. LT is for Light Truck.
In both cases, you have some flexibility with wheel width as longs as it is not too narrow or too wide for the tire.
I have left a lot of details out but these are the main things to take note of.
I am by no means a tire expert. But they can vary in height for the same leading numbers based on the secondary ratio portion. Why not look at a chart and see what size might suit your needs then go looking for those to make sure you like them?
Or drop the metric version and go directly to like a 33 or 34” tire using the other system?
Looks like there aren’t many metric variations up this big so my original rambling seems to be irrelevant. On smaller car tires you can swap up first and second numbers and end up being close to same height.
I think I have the original and my current properly marked on this screenshot. Key point is the width because keeping it skinny enough will help keep them off your leaf springs (at least in my mind, someone with truck tire experience correct me if mistaken).
Maybe look at a 34x10.5x16?
Or do those end up looking too skinny?
I have read everything that you guys have wrote about tire sizing, it confused me for a bit. I had to reread everything. I did not know there was another measurement system for tires. I thought the metric version was the only one. The other version is way more my style. I've never been much of a metric person. So, at this point I would like to go with some 34-in tires more than likely. Joel (runningman777) stated that he had 12 and a half inch wide tires and it just barely touches the leaf spring. I think I can live with a little touching. I could also get some slightly more offset wheels and wouldn't have to worry about it. I'm going to have to get new Wheels anyway. I think I will stick with the 16-in rim though. Maybe 16 and a half or 17. I like a lot of rubber, not a rubber band. That being said, at this point, I need to look into 34 x 12 1/2 x 16. My current tires are 9.7 inches Wide. They are 30 in tall. I think I definitely need the 12 and a half inch wide tires. I will just have to get some slightly offset Wheels so that it doesn't hit the leaf spring. My current tires look too skinny on this truck. I am so glad there is a standard tire measurement system. Thanks guys!
I have read everything that you guys have wrote about tire sizing, it confused me for a bit. I had to reread everything. I did not know there was another measurement system for tires. I thought the metric version was the only one. The other version is way more my style. I've never been much of a metric person. So, at this point I would like to go with some 34-in tires more than likely. Joel (runningman777) stated that he had 12 and a half inch wide tires and it just barely touches the leaf spring. I think I can live with a little touching. I could also get some slightly more offset wheels and wouldn't have to worry about it. I'm going to have to get new Wheels anyway. I think I will stick with the 16-in rim though. Maybe 16 and a half or 17. I like a lot of rubber, not a rubber band. That being said, at this point, I need to look into 34 x 12 1/2 x 16. My current tires are 9.7 inches Wide. They are 30 in tall. I think I definitely need the 12 and a half inch wide tires. I will just have to get some slightly offset Wheels so that it doesn't hit the leaf spring. My current tires look too skinny on this truck. I am so glad there is a standard tire measurement system. Thanks guys!
Tristian,
Here is a metric / inch tire converter. You can plug in numbers from either system and it will show you what it converts to.
I have read everything that you guys have wrote about tire sizing, it confused me for a bit. I had to reread everything. I did not know there was another measurement system for tires. I thought the metric version was the only one. The other version is way more my style. I've never been much of a metric person. So, at this point I would like to go with some 34-in tires more than likely. Joel (runningman777) stated that he had 12 and a half inch wide tires and it just barely touches the leaf spring. I think I can live with a little touching. I could also get some slightly more offset wheels and wouldn't have to worry about it. I'm going to have to get new Wheels anyway. I think I will stick with the 16-in rim though. Maybe 16 and a half or 17. I like a lot of rubber, not a rubber band. That being said, at this point, I need to look into 34 x 12 1/2 x 16. My current tires are 9.7 inches Wide. They are 30 in tall. I think I definitely need the 12 and a half inch wide tires. I will just have to get some slightly offset Wheels so that it doesn't hit the leaf spring. My current tires look too skinny on this truck. I am so glad there is a standard tire measurement system. Thanks guys!
Tire width is not the only factor that will affect whether the tire rubs the spring or not. Wheel diameter, width and offset will also determine that. I will try to find a diagram that explains all this.
First, here is an image explaining wheel offset:
Then here is the effect of a wider wheel while keeping the tire the same:
In your case, you are using a wheel significantly narrower than the tire so the tire's sidewalls are bulging out the sides.
As you can see, keeping the tire the same, you can still play around with wheel width and offset to make sure nothing rubs. Be warned though. Too much negative offset like the brodozers with their brakes completely outside the wheel wreaks havoc on wheel bearings.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
This is a $2200 transmission jack. It makes it pretty damn easy. 
