Should I step up to a 285/70/17?

Having been through cooper 285 tires I am now back to KO2 275s

Off-road and look wise, no doubt 285s help. But for the majority of the drive time (tarmac) it was just too cumbersome for my taste.

Hmm interesting. On a stock rig 275 vs 285 is noticeable. 275's almost drive stock whereas with 285's you definitely feel the sluggishness. However your 4R is definitely not stock and the CBI rear is probably around 225-250lbs. I was running 275's and then I threw on a rear bumper I could feel the extra weight. I went up to 285's after getting the bumper and really didn't notice much difference at all.
 
You do realize that with 285's you'll have to do a fender liner mod, may have to remove mudflaps, and could possibly need a body mount chop?

I didn’t have to do any of that on my rig and I’m running the larger 285/70/17 Falken Wildpeak M/Ts with OEM 17x7 wheels. Supposedly the Falkens run larger than some of the other popular brands in the same size.

4Runners can be all set up different with brands of suspension components, lift height, tire size, tire brand, wheel size and extra weight in accessories.
 
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I didn’t have to do any of that on my rig and I’m running the larger 285/70/17 Falken Wildpeak M/Ts with OEM 17x7 wheels. Supposedly the Falkens run larger than some of the other popular brands in the same size.

4Runners can be all set up different with brands of suspension components, lift height, tire size, tire brand, wheel size and extra weight in accessories.

Running M/Ts with trd offroad wheels (7.5). Only slight rub on mud flap near body mount on full compression. Not sure on the front since i chopped it.
 
So a few weeks ago I had a lift and tires installed. I went with the Falken Wildpeak AT3Ws in 275/70/17 and I’m regretting not getting a larger tire.

Edit-285s were ordered. Install is 10:30 tomorrow.
Let's see some pics when you have the 285's on. I have 275's and sold my 265 Nittos immediately after purchasing my Pro. Then I did a 1.5/1" spacer lift to level it out. I'm satisfied with the look and result, plus I had to do zero mods for fitment. No rubbing and clearance issues fully articulated and I like running my front mud flaps. BUT, I will eventually go to 285's once the 275's wear down, as I think the 285-70-17 is the best size (looks/off road performance) tire on the 5th gen without sacrificing too much. Much more selection on 285's, and due to selection, if you blow a 285 out it is easy to find another one no matter where your at. It will also still fit in the spare area underneath.
 
Here's my 17 SR5 with 1½" front, 0 rear & 285's
7de8476bae105d8057ce6d2d6dd2db31.jpg


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The 285s are on and no rubbing. I’ll test them out on the trail later this afternoon.

I did go with P rated tires this time as I don’t need 10 ply tires. The 275s were LT.
 
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Here's my 17 SR5 with 1½" front, 0 rear & 285's
7de8476bae105d8057ce6d2d6dd2db31.jpg


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Toyo Open Country A/T on Mickey Thompson "Deegan 38" wheels. They were on the truck when I bought it.
At full lock they barely kissed the fender liners, really wasn't an issue. But I did the mod anyway. I almost used a heat gun to push in the nub where they rubbed.
Mudflaps are still intact. Contact hasn't exceeded flex, yet.
44894b66edf41582716bbb852794aad4.jpg


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The 285s are on and no rubbing. I’ll test them out on the trail later this afternoon.

I did go with P rated tires this time as I don’t need 10 ply tires. The 275s were LT.

Interested in hearing about the ride quality difference as I have E rated 275’s and my C rated 285/75-16’s on my 2001 Runner rode nicer. Also, would like to see some comparison pics.
 
Here are a few pics of the tires side by side. The tread depth is smaller in the P rated 285s but they're really quiet and the weight feels about the same as the LT275s.

For some reason I cannot upload pics right now.
 
The 275 vs 285 vs tall skinnies is where I'm currently at as well. I wonder though, why is it that everyone says you "might" need to do a BMC? Aren't these trucks pretty much all the same, and tire brands sizing only varies typically by a few tenths?

If 285s really are that close to everything, running them probably isn't the best idea? Heaven forbid you hit a pothole and rip your fender out because your suspension compressed a few inches.
 
Running C load rated 285 KO2s that were Jeep takeoffs. The 116Qs only weigh 50 pounds and balance a lot easier. Tucked under a 2.5”/2” lift. No rub, not even close to hitting the body mount.
098e00bbb230f9ecadbd2e642ab131bb.jpg



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Running C load rated 285 KO2s that were Jeep takeoffs. The 116Qs only weigh 50 pounds and balance a lot easier. Tucked under a 2.5”/2” lift. No rub, not even close to hitting the body mount.
That’s what I would like to run after my 275 KO2’s E rated tires (57 lbs.) get a bit more worn. How’s the ride quality?
 
That’s what I would like to run after my 275 KO2’s E rated tires (57 lbs.) get a bit more worn. How’s the ride quality?


I’ve been really happy with suspension and tires. Don’t notice a ton of road noise, tracks straight, no issues in rain. Have them set to 38 psi.


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