Going Bigger - 5th Gen Tire Fitment Guide

[2016 4Runner SR5]

Looks great! Do your fronts not eat the fenders at full compression though? It looks tight.

Couldn't tell you, never wheeled it that hard and it's not like that anymore. You'll need longer bump stops to stop rubbing even where you're at now with your current tires. IFS is much totally different from solid axle. With IFS, the wheel travels straight up into your fenders. With solid axle your wheel curves as it compresses making stuffing the tires a lot easier.

 

[nflpat]

Just added 285/70/17 KO2’s and SCS Stealth 6 to 2020 ORP w/ KDSS. 6112/5160/T13/SPC UCA gets installed in a couple days. Lots of rubbing with stock suspension. Will update with amount of trimming needed after lift install.

 

[2016 4Runner SR5]

Just added 285/70/17 KO2’s and SCS Stealth 6 to 2020 ORP w/ KDSS. 6112/5160/T13/SPC UCA gets installed in a couple days. Lots of rubbing with stock suspension. Will update with amount of trimming needed after lift install.

Get rid of the front mud flaps and do the fender liner mod. More that likely all your rubbing will be solved. Wherever you rub now, you will still rub after the lift install.

 

[nflpat]

lift and uca installed. clips set at 5. thinking about bumping up 1 more clip. front mud flaps removed. still rubbing on full turn, but fine for driving around town. getting bmc next week.

 

[BlueEyedDevil]

Can anyone tell me what the largest sized tires I can use on TRD Pro factory wheels?

 

[safdSA]

stock SR5 with SCS F5's and 255/75 BFG Ko2's. Discount guy said slight rubbing while turning in reverse. I need to check. I'll remove mud flaps tomorrow. Getting a 6112/5160 lift this week.
Pics to come!

 

[2016 4Runner SR5]

Can anyone tell me what the largest sized tires I can use on TRD Pro factory wheels?

Advertised, 275/70/17 People do 285/70/17 all the time. I wouldn't go any bigger than that. That's also assuming you have a lift.

 

[BlueEyedDevil]

Advertised, 275/70/17 People do 285/70/17 all the time. I wouldn't go any bigger than that. That's also assuming you have a lift.

Thank you.

I did something similar on my 2013 TE, but with non-OEM wheels. I had a 2”/1” lift on that. And, it was 7 years ago.

I remember there being a point where there was a cutoff in upsizing tires, with a lift, where other considerations, such as gearing weren’t necessary. Would it be accurate to assume 285/70/17 is that cut off?

 

[sawman1]

Thank you.

I did something similar on my 2013 TE, but with non-OEM wheels. I had a 2”/1” lift on that. And, it was 7 years ago.

I remember there being a point where there was a cutoff in upsizing tires, with a lift, where other considerations, such as gearing weren’t necessary. Would it be accurate to assume 285/70/17 is that cut off?

There may be a lot of comments on this. For me, I would agree on the 285/70/17 probably being about max with your gearing consideration. I have had many vehicles and my 19 4R Limited seems adequate at best with the 275/70/17 set I have installed with 17X9 wheels. (For the record, I have only the 1" Cornfed spacer installed in front - but for fitment, this means little, as IFS truck front end geometry is different than solid-axle).

Much of what you decide is personal - how will your 4R be used? What is acceptable for perceived "power" (whether lifted/modified or not)? There is a lot of good information here, some of which was learned the hard way through trial and error - but ultimately how you go is up to you - what works and what is acceptable.

 

[2016 4Runner SR5]

Thank you.

I did something similar on my 2013 TE, but with non-OEM wheels. I had a 2”/1” lift on that. And, it was 7 years ago.

I remember there being a point where there was a cutoff in upsizing tires, with a lift, where other considerations, such as gearing weren’t necessary. Would it be accurate to assume 285/70/17 is that cut off?

I run a 295/70/17 stock gears and no complaints.

 

[comtn4x4]

Thank you.

I did something similar on my 2013 TE, but with non-OEM wheels. I had a 2”/1” lift on that. And, it was 7 years ago.

I remember there being a point where there was a cutoff in upsizing tires, with a lift, where other considerations, such as gearing weren’t necessary. Would it be accurate to assume 285/70/17 is that cut off?

I'd agree generally with what everyone else has said. Although once I re geared (I was on 285/75's at the time) I really thought the re gear would have been great in combination with 285/70's. Although my rig was fairly heavy at that point and I would load up considerably for trips. Bottom line I think you could go either way with re gearing on 285/70's. I think most skip it due to the considerable cost and there are probably more desirable ways to spend the money.

 

[BlueEyedDevil]

I'd agree generally with what everyone else has said. Although once I re geared (I was on 285/75's at the time) I really thought the re gear would have been great in combination with 285/70's. Although my rig was fairly heavy at that point and I would load up considerably for trips. Bottom line I think you could go either way with re gearing on 285/70's. I think most skip it due to the considerable cost and there are probably more desirable ways to spend the money.

So regearing up to the 285/70 point is essentially optional? Beyond that point it becomes necessary? I just don’t want to f@#$ up my new TRDP.

Thanks for your info here.

 

[comtn4x4]

So regearing up to the 285/70 point is essentially optional? Beyond that point it becomes necessary? I just don’t want to f@#$ up my new TRDP.

Thanks for your info here.

Necessary is an opinion. There are many who run their rigs with larger than 285/70 tires without re gearing. There really isn't anything you can f@#$ up by not re gearing. I'm guessing but I imagine that the number of people who have re geared their rigs is by far in the minority.
Deciding if you want to re gear is completely subjective and there are a variety of factors that can influence the choice. Everything from where you live to how heavy your rig is to your budget to how sensitive your butt dyno is.
I'd leave the re gearing alone for now. Put the tires on and get out there and have some fun. Your first pin stripes will do more damage than not being re geared

 

[BlueEyedDevil]

Necessary is an opinion. There are many who run their rigs with larger than 285/70 tires without re gearing. There really isn't anything you can f@#$ up by not re gearing. I'm guessing but I imagine that the number of people who have re geared their rigs is by far in the minority.
Deciding if you want to re gear is completely subjective and there are a variety of factors that can influence the choice. Everything from where you live to how heavy your rig is to your budget to how sensitive your butt dyno is.
I'd leave the re gearing alone for now. Put the tires on and get out there and have some fun. Your first pin stripes will do more damage than not being re geared

Understood and thank you for the reply.

 

[safdSA]

Quick pic

 

[83Mule]

I didn't re-gear with 285's and don't feel I need to with the Pedal Commander....it still feels peppy. I still have the mudflaps on even with the spacers after some serious whittling on the inner flap and a BMC. Without spacers I would have plenty of room but I like the look.https://www.toyota-4runner.org/attachment.php?attachmentid=355743&stc=1&d=1583198105

 

[RusPro17]

Quick pic

What size tire without a lift?

 

[BlueEyedDevil]

I didn't re-gear with 285's and don't feel I need to with the Pedal Commander....it still feels peppy. I still have the mudflaps on even with the spacers after some serious whittling on the inner flap and a BMC. Without spacers I would have plenty of room but I like the look.https://www.toyota-4runner.org/atta...th-gen-tire-fitment-guide-20191228_112520-jpg

Looks great.

 

[safdSA]

What size tire without a lift?

255/75 with no lift. I get the lift today and will share later

 

[dansoore]

Easily fixed.