heycody

I'm looking at starting off my 2016 JKU Sport with 35's and a 2.5 lift, but I was curious on if it's possible to space it out and get the 35s with no lift. Does that work, do I need flat flares? I know i'll have to get the flares either way with the 2.5 lift, just wondering though.

AZleatherneck

https://www.jk-forum.com/forums/modi...ratacs-329015/

Sclittle

I put a 2.5 Rubi Express lift w/ 33's. Should have the fund for 35's soon. What is the difference between a 315/75 and a 35? Looking online it seems that the 315 is just a tad taller.

MavisJk

https://www.tacomaworld.com/tirecalc


315/75r17 is metric. 35 is inches.
315 is the width and 75 is the distance between the top of the rim and the top of the tire.
Most 35 inch tires dont actually measure 35 inches, closer to 34 or even 33. Things like the width of the rim and manufacturer affect how close the actual size of the tire is compared to what the tire is advertised as.

gburkett

35's no lift with cut fenders. You'll need bumpstops in the rear. Yes it will work. Mine was like this for 6 months.

alexwblackJK

315/70r17 dura tracs... No lift...2.5 in the future
[attach=config]634895[/attach]

larry0071

To be more clear, the 75 is the ASPECT RATIO, or ratio of sidewall compared to the section width. In this case, it is 75%, or 75% as high from bead surface to tread. Note that tread width is often less than section width. Section width would be the sidewall at the widest point while mounted on the recommended rim width. As you change rim width, you can push the section out or suck it in.

A number you all should have memorized is 25.4. 25.4 is how many mm equals an inch.

So, knowing that you can easily and quickly calculate the actual size of any metric tire. I will demonstrate.

315/75-17 is the tire in question.
315mm is the tread width, divide by 25.4 and you get inches of section width. 315/25.4= 12.4" wide.

So now you simply take the 12.4 and multiply by 0.75 (75%) to get the sidewall height. 12.4*0.75=9.3".

Since your rim is in between the sidewall and the ground, and the top tread is above the sidewall and rim, you add rim diameter + Sidewall (below) + sidewall above to get overall height.
17" + 9.3" + 9.3 = 35.6"

So you have a tire real close to 12.4x35.6-17.

You can change P-Metric designations for any desired tire and repeat this over and over for any metric tire. And after you do it a couple times, you can do it in seconds on your smart phone calculator.

heycody

ahh okay, thank you all for the replies and pictures!

Sclittle

Great Info, thanks!

MavisJk

Thanks Larry for the clarification. That actually makes more sense if the math is actually done haha.