My "new" truck came with a set of new but really skinny and crappy Hankook 245/75/16's, and they look like sh$% on my truck. I want to put wider rubber on the rims (stock), but I park underground and I can't afford to gain any height. What is the widest tire I can get on the rims?..or should I change rims?....how do I avoid getting taller?

Thanks,

John M

 

The only way to go wider and not taller is to keep lowering the aspect ratio of the tire. Since you now have 245/75/16, it's about 30" tall. The next problem will be your rim width. It's probably only a 7" wide wheel. That will limit your tire width.

I'd say you could go to a 265/70/16 tire with your stock rim. This will still be about 30" tall and you'd get 20mm wider tire (almost an inch).

If you go for new wheels, get a 9" wide one and go for a 305/60/16. That's still only 30" tall, but will be plenty wide.

If you go to a decent tire store, they will know alot more then me, and you'd be able to physically see the tires. They should even let you take the tire out to your truck and place it next to your stock ones so you can see the difference.

I just noticed you have the F250/LD. That means you will have a "load range" issue too. Your stock tires probably have a load range of "D" or even "E". The sizes I mentioned above may not have that type of load rating, unless they are "Light Truck" type of tires.

This is only going to be a "major" factor if you load your truck or tow a heavy trailer.

 

That makes a lot of sense. I found a site with a dimension calculator that gave me a total diameter of 30.5" for my current set-up. I think the wide rims are the way to go, as visually the truck needs about another 2 inches in tire width. I will pay close attention to the load range, as I do plan to rent a camper next summer (why I bought a 3/4 ton in the 1st place).

John