tires fit?
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Fleet Mechanic
Joined: Jun 2009
Posts: 1,346
Likes: 4
From: Connecticut
tires fit?
So I am installing a 2.5 leveling kit on my 02 f350 crew 7.3 diesel and was researching tires.Right now I have 285*75*16,they are 33 inch wide and they will barely rub my front mud flaps when lock to lock and suspension under load.Now after I install the leveling kit do you think a 35 inch tire {BFG m/t KM2 } 315*75*16 would be a problem?Im not sure the 2.5 inches upwards really makes a diff on front to back...But I really want to fill the wheel well more and 33s are lookin small to me now...
Cargo Master
Joined: Nov 2004
Posts: 2,751
Likes: 3
From: So Oregon
Well, you're not going any more taller than you are going wider. If they rub the mudflaps is it because they are too wide and rub when turning or too tall and rubbing. What I'm getting at is if you had a 33x10.5x16 tire would it rub? If you then went to a 35x10.5x16 would you rub? If you've got a 33x11.5x16 right now and go wider you're likely to rub even with a lift because you're likely rubbing do to the width moreso than the height, even lifted, because it probably doesn't put the mudflap outside of the width of the tire. You probably need a different offset wheel.
Cargo Master
Joined: Jan 2009
Posts: 2,769
Likes: 8
From: Lubbock
+2 on the above. im running the tires you want stock and my wheel wells are full. i rub on the driver spring at the rear and on the passenger front when i turn right. im also rubbing some plastic which wouldnt be a issue with a levelling kit but other than getting spacers i will still be rubbing the springs lift or not
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Fleet Mechanic
Joined: Jun 2009
Posts: 1,346
Likes: 4
From: Connecticut
Well, you're not going any more taller than you are going wider. If they rub the mudflaps is it because they are too wide and rub when turning or too tall and rubbing. What I'm getting at is if you had a 33x10.5x16 tire would it rub? If you then went to a 35x10.5x16 would you rub? If you've got a 33x11.5x16 right now and go wider you're likely to rub even with a lift because you're likely rubbing do to the width moreso than the height, even lifted, because it probably doesn't put the mudflap outside of the width of the tire. You probably need a different offset wheel.
Cargo Master
Joined: Nov 2004
Posts: 2,751
Likes: 3
From: So Oregon
Offset or backspacing would put the wheel/tire out a little farther. I personally don't like the look, but a lot of people do. The distance between the bumper and the fender (bumper to just in front of the front of the door/fender) doesn't change much when you lift the vehicle. Actually it doesn't change at all, but raising it changes it relative to the front and rear of the tire, which helps when you go to a taller tire. Problem is also the width of a tire relative to the bumper/inner fender when turning. So, even if a tire height didn't change you'll have less clearance with a wider tire when turning. If you get a taller AND wider tire you've got two things working against you, the height when the wheels are straight relative to the bumper/fender clearance, then the clearance on the inner fender due to the width of the tire. If you get a wheel/rim with a different offset you can move where it might otherwise rub when you're turning. It might hit the leaf spring, or it might hit the inner fender and it'll do it based on both height and width, so it's something you have to look at in more than one dimension...like in the twilight zone.
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Fleet Mechanic
Joined: Jun 2009
Posts: 1,346
Likes: 4
From: Connecticut
+2 on the above. im running the tires you want stock and my wheel wells are full. i rub on the driver spring at the rear and on the passenger front when i turn right. im also rubbing some plastic which wouldnt be a issue with a levelling kit but other than getting spacers i will still be rubbing the springs lift or not
Cargo Master
Joined: Nov 2004
Posts: 2,751
Likes: 3
From: So Oregon
Rim/wheel width is relative to the tire width, not the height. You can put a 33, 35, 37 inch tire on a 15, 16, 17+ inch tall wheel depending on the wheel width. If I were putting a 12.5" tire on a wheel I'd want the wheel to be 8+" wide. I have 17" wheels, 17x7 or 7.5" (I don't remember). I'd want a 35x11.5x17 tire on my wheels and would want a 8" or wider wheel if I had a wider tire. Can it be done, a 12.5" or wider tire on a narrow wheel, probably. Most manufacturers state on what width wheel their tires are recommended. Some shops won't install them on different sized wheels, some will.
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Senior User
Joined: Jan 2007
Posts: 235
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From: Rochester, IN
I have about the same truck you do. I have a 2" leveling kit and I am running 315/75/16's But they are on a 10" wide rim. I would never put 12.5" tire on a 7 " rim especially if you haul anything. They will bulge out like no tomorrow, an your tries will wear horribly.
If you want to run 315's get some either 9 or 10" wide rims.
they need to be 4.5" backspacing, and everything will fit just fine.
If you want to run 315's get some either 9 or 10" wide rims.
they need to be 4.5" backspacing, and everything will fit just fine.
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