285 tires on a stock 2011?

Hi all! Newbie to the forum here with a tire question...

I’m currently running the BFG Rugged Terrains 275/70/16 on my stock 2011. Time for new rubber and wanting to switch to the All Terrain KO2. Wondering if 285s will fit with the extra 1-1/2-ish diameter?

Anyone tried this?

Thanks and looking forward to be here!

Jason

 

Check out this thread, this will give you an idea of what guys had to do to run that tire size. I have 285 70 17s sitting in my garage waiting to go on.
https://www.tacomaworld.com/threads/285-75-r16-owners-experience.295768/
Good luck!

 

Without cutting, no. With cutting, yes.

 

It's likely to rub. You may need to do the CMC, but I'd certainly fold over the pinch weld anyway.

I have BFG KO2 285/75/17 on my 2015 and I had to do everything. Obviously it's a larger tire, but I bet you'll still rub slightly on turns. Some people just live with it. If you don't really offroad it may only rub on the rare occasion.

It will also be affected by the rims you have.

 

If you want that size, height mainly, look into 255/85/16s. Most are about 33” and depending on wheels, fit with minor fender cutting and taking off mud flaps

edit- also welcome to TW!

 

First, is it a standard SR5 or a TRD suspension? Second, is it the stock +30 offset wheels, or aftermarkets that are wider and have less positive offset (closer to zero)?

If it is totally stock SR5 suspension and wheels, the biggest tire you can run without rubbing is a 265/75-16. 285's will rub at both front and rear corners of the front tires when you turn, and more so if you hit bumps. If you have less offset, the problem gets worse.

I had 265/75-16's on my truck and they barely cleared when turning. I recently went to wider wheels (7.5 to 8.5) and less offset (from +30 to +7) and I had to take the mud flaps off the fronts to keep them from rubbing in turns. The front edge just barely skims the fender liner, but stays clear. A wider tire wouldn't make it, even by dropping the aspect ratio (going from a 75 to a 70). Now, if you have a TRD suspension, you might get away with it, they sit about an inch to an inch and a half higher in front.

 

Since you being a newbie a little education is in order. Tire diameter is determined by all three numbers in size description. So lets start with your current size 275/70 16. 275 is the width, 70 (aspect ratio) is the height of the sidewall in a percentage of width (side wall is 275 x .70= 192.5mm or 192.5mm divided 25.4 (mm to inches) = 7.57inches, 7.57x2 (2 sidewalls top and bottom)=15.16, 15.16+16 (wheel diameter)=31.15. Now when you say 285 is it a 70 or 75. A 285 with am aspect ratio of 70 will add approx. .5" but a 75 will add approx. 1.5". Back to will it fit? The consensus is NO. a 31-31.5 diameter is about as big as you can go on stock wheels with no lift (265/75-16). Most people will still do a small lift on the front with that size. Such as just doing Bilstein 5100 front shocks (lower spring perch is adjustable in height). You can either use stock springs and set on second or third notch up from bottom. There are four notches and the fourth is not normally recommended. Or you can get a longer spring such as the OME 883. To fit the 285/75-16 (typically considered as a 33" but actually more of a 32.5". To go this size in most cases a 2-2.5" lift is needed then to get back to good caster numbers most will do upper control arm that have been designed with upper ball joint farther back to correct caster. But that pushes wheel back in wheel well and then most will do a cab mount chop. As you can see each step up in tire diameter opens up a new challenge.

 

Thanks for all of the thoughtful replies - after perusing the links in this thread and the overall site this is obviously a question that has been discussed and debated a lot.

Sounds like the bottom line is...you won't know until you try it on your actual truck.

I have the TRD version with stock wheels. There is plenty of clearance with my current 275/70-16's when cranking the wheels left and right - by eyeballing it I'd say at least an inch at both the front and back of the wheel well. Which makes me think the 285's just might work. I have no qualms about bending over the pinch weld or cutting and welding the cab mount, so if it comes to that I guess we'll make a Saturday out of it.

I'm in Seattle BTW and looking for recommendations for a general maintenance garage for oil changes, tire rotation, that kind of stuff. I've been taking it to the dealer up to this point but think I'm opting out of that as we enter 2021.

Thanks again,
Jason

 

In your initial post, you say you’re running 275/70/16. In the most recent post, you mention 265/75/16. Which is it?

 

You also need to check the rubbing when the tire is stuffed up into the wheel well, especially if you do even the slightest off roading. If it doesn't fit when its stuffed, then you could do some carnage on the fender lining, fender flares, or even the actual fenders if ur going fast enough.

 

Ah yes, my mistake! I mistyped that while reading previous posts about 265s...

Mine are indeed 275s! Thanks for the catch!

 

You’ll rub UCAs if you have stock wheels with no spacers

 

I have stock 2nd Gen steelies and my 265/75 16s are like... A quarter inch from my UCAs. Terrifies me every time I look at it

 

Yea, the proximity of the 275's, and therefore 285's, to the UCA is definitely more worrisome than the other potential contact spots...

Wheel spacer time? This is a slippery slope, as you all know.

-Jason