legend4ever

Ive tried searching and i seem to have confused myself even more.
I have 16in rims on my 4runner right now. I want to get a wider and taller tire. Whats the biggest tire I can get without and rubbing on a stock suspension. I was thinking about getting a 265/75/16 tire or can i get wider or taller. how do you measure size, i didnt understand the webpage at tirerack.com, thanks

Scottiac

well, before you get throunced to search more, yes, you can fit a 265 75r16 on a stock 97 (that's what I have)

bigger than that will *likely* cause you problems, unless you do some lift and/or trim operations.

Also check out the tire size calculator on the Yotatech on the Web page
which is here...

basically, that tire is 265 mm wide, with the sidewall height being 75% of that. About a 32" tire, in short.

legend4ever

Thanks for the info.
George

ALBPM

Here's a couple more tire size calculators.

http://www.csgnetwork.com/lttrucktireinfocalc.html

http://www.miata.net/garage/tirecalc.html

Another choice would be 275/70/16 which is a bit wider but not much taller.

halza

I have 275/70/16 on my 97 , stock height, and there are no problems whatsoever, I even think that you can go as big as 285/70

chuckd

Mine rub if I turn and hit a bump, and if I'm carrying passengers it can be pretty bad. 265/75/16. With 4 people and 2 kegs in the back it is an absolute nightmare. Luckily the lift is coming soon.

TacoBell

Ok, I'm in the tire industry, so let me see if I can help explain this some.

On an metric size tire (P265/75R16 or LT265/75R16 for example) the first thing to look at is the FIRST letter. P stands for Passanger, LT stands for Light Truck. Light Truck is the designation for trucks that tend to carry more weight than just a few hundred pounds of cargo. LT tires are pretty much on anything heavier than a half ton truck. These tires are Load range C,D,E and so on with the weight capacity going up with each letter.
The next thing to look at is the first group of numbers 265. This is the width of the tire at its widest point, sidewall to sidewall, in millimeters. So the tire is 265 mm wide. The 75 stands for 75%. The Height of the sidewall is 75% the width of the tire, or 75% of 265 mm= 198.75mm.
R stands for radial. The tire is a radial versus a bias ply.
Last is the 16. The tire fits on a 16" wheel.

On a standard tire (LT32x11.50R15) it's a little different, but not much.
Again, LT=light truck
32 is the diameter of the tire in inches. So the tire is a 32" diameter tire.
11.50 is the width of the tire sidewall to siedwall at it's widest point in inches.
R again=radial
15 means it fits a 15" wheel.

To do the conversion from metric to standard takes a little math, but it can be done if you know how to convert mm to inches.

265mm= 10.43 inches, so roughly a 10.50 tire wide
75% of this=198.75mm or 7.82" is the sidewall, times 2 (top of tire above the wheel and bottom beo=low the wheel) = 15.64" add 16" (for the wheel) and you have a 31.64" diameter tire or to put it in standard form 31.6x10.50R16, which would be set at a 32x10.50R16 by industry standards.

legend4ever

thanks for the in depth info, so how is it that chuckD rubs and halza doesnt, since both are the same exact trucks.

TacoBell

There are so many variables involved it's hard to say. Even if they had the exact same tires, wheels, trucks, and lifts, they could have different results depending on spring sag rate, how the trucks gets used (wear and tear on the suspension), etc. It looks like they are running not only different size tires, but maybe even different brands. For instance: a 285/75R16 Goodyear MT/R measures 33" in diameter, a BFG Mud in the same size measures 33.1" Not a big difference really, but it could be all it takes to make one rub and the other not. Unfortunately there are no solid, exact answers for every case, but there are general guidelines. Let me know if I can help with any other questions, I'll do my best to answer them.

legend4ever

thanks.
should i try to stay away from too wide of tire, would you recommend 275/70 or 265/75 for my stock setup.

TacoBell

For a stock wheel it should be ok to go with a 275/70. I have seen some people put 285's on stock wheels, but I wouldn't recommend it. For a 285 I would move up to an 8 inch wide wheel.

Skeeziks

does anyone have pictures of a 3rd gen. with 275/70/16 ?

Mike06

Bump, I want to see pictures too.

ALBPM

Ya, these are with the Michelin 275/70/16 LTX M/S tires.







No loss of power and a lot better handling than the stock Dunflops.

I just put these Michelins on my Wife's Pre-Runner and 265/75/16 REVOS on the Runner last week.

legend4ever

those look good, and you dont have any lift correct
thanks!

Mike06

Read his sig......

legend4ever

haha i saw his sig but dont know alot about truck suspensions, so i really have no idea....

ALBPM

2" in front and 3" in the rear.

But, they fit nicely on my wife's Tacoma Pre-Runner which has no lift
and possibly less room than the 4-Runner.

legend4ever

thanks

Citykid

Hey guys, so is there really a difference between 265/70-16 & 275/70-16? I'd go 285 but see that many are rubbing and I am not ready to add the lift. Not yet at least.