I just got a 2014 Trail and I want to get the 17" x 8" TRD rims (not the new 17" x 7" ones everyone is raving about) and throw some 285/70/17r on them. Stock height, no lift. I am sure there will be some rub but, anybody have a set up similar to this and can tell me me how much rub there is going to be? Am I doomed to chop my rig or forced (oh the inhumanity!) to lift my 4R to fit these tires? Any help would be appreciated!

That's why I made the "Will It Rub?" color yellow. Depends on what tire you run, what alignment spec you have, what the new wheel offset is etc. Believe it or not everyone's 4Runner is a bit different, hence adjustable alignment bolts. I can say you will rub. Depending on everything else, you might have to move the inner liner forward, you might have to trim the mud flap, you might have to trim the front cover a bit, and if you really are bad you might have to do a body mount chop. None of these things are hard but you will have to do something. Even if you lift you have to do these things. Don't want to do anything? Stop at 275.

Thank you 1engineer. I'll probably go with the 285/70/17r on the 17" x 8" TRD rims (zero off set) and take my chances. My Tacomas would fit a 285 no problem. Sad to hear the 4Runners are not the same. I'll update with my experience with putting these on!

Looks like ThrillSeekr has a similar set up to what I am looking for and only has minor rubbing at full lock.

So an update on this. I chose to go with the TRD rims that were 17" x 7" when I found out the 17" x 8" was a two piece rim. So glad too because they look awesome. With that said I went with some Goodyear MT/Rs 275/70/r17 instead of the 285/70/r17 because the Goodyear rep said that size would definitely rub. He also stated the 275/70/r17 would rub when the tire is up in the wheel well and turned. He was right. However, there is very minor rubbing. At the present moment, everything else is stock. Here is a picture just for fun!

I just had 275/70/17 Firestone Destination AT's installed on my TE with stock wheels. I do have a little bit of lift with FJ TT coils and shocks (Bilstein HD) and small front spacer. I am getting just a little bit of rubbing at full turn (backing out of driveway). I guess I will need to do a little trimming. I am thinking about wheel spacers (hate how far they are tucked in). Not sure if wheel spacers will make rubbing worse or better.

They will make the rubbing worse.

Ok, thanks. Haven't looked at it yet, just heard it this morning. Found Harper's thread on moving the liners, hopefully that is all that is needed.

So this question is best served here. Considering trading my stock size Cooper ST Maxx for 255/80/17 ST Maxx. My question is not whether it will rub (hell the stock size rub the fender liner now). My question is that going with the 255s will I need aftermarket UCAs and maybe a body mount chop or can I get by with stock UCAs? I really really don't like things squeaking on the truck so I kept stock UCAs with my 2" Toytec boss lift and everything aligned within parameters without issue (cause it's stock size tires), BUT I am running stealth SR8s now which is 17x8.5 -10 offset not the 17x7 stock wheel. I don't want to cut the mud flap too much but again. Don't mind doing that. Just don't want squeaky after market UCAs (if I do to UCAs, only ones I've considered are the Camburg with Moog joints, heard about too much squeaking with LR and anything uniball). Thanks in afvNce guys.

Hello all, new to the forum as I just bought my first truck...a T4R Limited. I know that the Bridgestone Duelers that come stock on it are not great winter tires...past experience. I am looking to put on some Goodyear Duratrac's and want to go to a bigger size. I live in Wisconsin and the snow is just around the corner...so it's time to get this change made. My question is how big can I go without making any serious modifications. These may get made in the future but I would like to keep things stock for now. The 275/55 20's look to be a safe choice. Also wondering about 20 inch vs 18 inch wheels and what the advantages are to both. Have not committed to the Goodyears yet so any endorsements of other tires are welcome...mostly hwy with a little bit of off road and lots of snow. Thank you everyone, great forum and glad I found it!

275/55r20 is as big as you can go without any rubbing issues! The main advantage with 18 inch wheels for these LE 4runners is the tire selection. You will likely have 2 to 5 times more options when shopping for tires that way. As far as performance goes; you will have a higher tire sidewall with 18'' rims which is marginally better for off-roading. When driving on the roads, the 20'' wheel and tire will have a more stiff and shorter sidewall which helps a little bit more with handling, it is more noticeable during turns. As far as endorsing a tire. My suggestion which is based on where you reside. I would suggest having a set of winter tires for winter and a summer tires for well.... you guessed it summer. Any snow tires with the snowflake symbol on them will handle much better in the cold than any A/T tire out there. I will personally recommend the Bridgestone Blizzak's for the winter. If you are interested in the duratracs, I would also take a look at the cooper st maxx's! They are a hybrid AT / MT tire like the duractrac, but better looking in my opinion. Good luck

There is really only one way to find out. Install everything and align (each truck is a little different). If you can't get enough + caster for your liking you will need aftermarket UCAs. My truck was fine with stock wheels/UCAs and 285 17s on a 3" lift. But then it felt really unstable on the hwy with the 17x8 wheels and same size tires (but more aggressive tread). The caster was within toyota spec, but it was not a comfortable drive. I went with the camburg uni balls and that solved it. The aftermarket UCAs (like the camburgs) bias the upper ball joint rearward a little compared to stock (which gives it more + caster).

I have 285 70 17 now and want to go bigger. Have 3.5" lift now. Can I get to 35"?

Please go carefully read the first post in this thread.

You can go as big as you want. Just remember, size is proportional to the number of mods you will have to do to keep from rubbing and the dollars go up exponentially in proportion to both.

Yes, I understand that. I guess a more specific question is, does anyone have experience running 35" or bigger tires on a Gen 5? Gearing up for the Rubicon. Thanks.

Trying to run 35's carries with it a lot of additional work and expense.
The unsprung mass and contact area of a 35" tire will sap your torque and fuel economy like crazy. Not to mention it's not in any way good for your drivetrain components via the added stress, CV angles from higher lifts, etc. Hence the recommendation to re-gear when going to any size above a 33", which is not cheap.
Then there's the heavy modification to the fender well linings, chopping of body mounts, bump stop extensions, etc, and even then you're still probably going to rub when flexing and or turning which is never ideal.
Really, 34" is about the largest tire we can realistically run on these 5th gens and have everything run the way it's supposed to: 33" being and ideal compromise with the least amount of associated modification.
All of this being said, I was standing beside a 5th gen on 35's yesterday and it appeared to be workable and very well done, but I know it was a long, tough expensive job getting it to that stage. However, I haven't seen it offroad so there's really no indication of how practical it will be.
EDIT: From all accounts, the Rubicon is more than doable with a good set of 33's.

In 2009 Toyota engineers ran the Rubicon in a stock TE prototype. No lift, no bigger tires, no extra skid plates but I think they ran sliders. That's all and they came away with a little cosmetic scratch and nothing broke. If I remember one of the head Execs was piloting one of them. Just sayin'.