mcahoon

Trying to make a decision on what size tires to put on an 08 reg cab 4x4. Was going to go with 315/70/17's, but tire man told me to try 285/75/17's, he says it will be about the same heighth, but a tad bit skinner and wld not rub as bad. anyone have this size on there trucks? Pics and thoughts please...

Charms

First, this is how the tire size works.

The first number, lets use the 315/70/17 as an example, is the width. This tire is 315mm wide, or in inches, 12.4(315 divided by 25.4). The second number, 70, is actually a percentage of the first number, and that gives you the sidewall height. So 70% of 315 is 220.5, or 8.7 inches. So, now we have a tire that is approx 34.4" tall, 8.7*2+17, and about 12.4" wide.

The 285/75 is going to be narrower and about half an inch shorter.

I own a tire shop and if I had both of those sizes in stock right now i'd be glad to set them side by side and take a picture, but we are just starting out so we don't exactly have a lot of inventory.

If you have any other questions i'd be glad to answer them as best as I can.

SuperTexan

Wont rub as bad? It dont need to rub at all.

mcahoon

Thanks charm, i think ill go with the 285 since its a bit cheaper as well. plus wont have to cut any of the inner fender out!

Charms

Just go with the smaller ones if they don't rub, or get a lift kit.

I personally like the reg cab 4x4 lifted with big tires look.

edit: hehe you replyed while i was writing this post