Ordered 295/70r17 cooper discoverer stt pro

[Ol'Baditude]

I was a motorcycle mechanic for 8 years. So everything except the alignment will be done by me. I just came from the jeep world. Where on a jk you can trim the flares flat and fit 35's. So it's shaping to be a steep leaning curve.

Yeah you'll find few vehicles easier to fit 35's under than a jeep, and few vehicles harder than a 5th Gen 4Runner. If it weren't for the fact that the 4Runner is such a good platform, I would have switched long ago; It would have made things much easier.

 

[trailstandardoffroad]

Wheel spacers will cause another problem (unless you can find a really small one about 1/2"). With a 1.25"....you will have too much scrub radius...

Again, you want an 8" wheel with 4.1-4.5BS. This will give you the best chance of clearing the tires without rubbing. 4.5 is your best bet.

Just buy wheels that fit. I never understand why people buy off sizes... FN wheels or SCS are great choices to get a good wheel that will fit perfectly.

I dont feel too great about 1/2 inch spacers. do think 1/4 will be better then nothing? the wheels are a done deal and will cost $150 in restocking fees.

 

[salong53]

Maybe I'm the voice of reason here, but it seems like you should just exchange the 295s for 285s. I just don't understand going through such headache for wheels that are 0.4" taller and 1cm wider. Who would ever notice the difference anyway?

 

[Vinsil]

Yep, just change the order to 285's or 275's.

 

[Ol'Baditude]

Maybe I'm the voice of reason here, but it seems like you should just exchange the 295s for 285s. I just don't understand going through such headache for wheels that are 0.4" taller and 1cm wider. Who would ever notice the difference anyway?

Actually, I've they're almost 1" taller and 1" wider than a typical 285/70 once you get them on an 8" wheel.
As someone who went from old STT's in 285 to the new STT's in 295 I can tell you that not only was there a noticeable change in appearance, but there was an instant noticeable reduction in clearance space. However, they look so much better in the wheel well than a 285 that I would recommend them to anyone if they're going bigger mainly for the look of it.

And honestly, since it's still going to be a trial to get 285's to fit so that they don't make contact, doing it for 295's isn't really that much more work.
As long as you've ordered the right parts, that is.

 

[maddiesel67]

I say try it see what happens , make it work.. Im going to make 315/70/17 work with 3" lift and 1" body lift. Its been done, it can be done. But be prepared to work/pay for it.

 

[trailstandardoffroad]

Yep, just change the order to 285's or 275's.

They will be here in the morning. Too late to change.

 

[wfo9]

You can see what happens but most UCA mfgs for the Toyota 120/150 platform specifically state 4.5 is the max backspacing. You might squeeze by with 4.75, but I doubt it.

$150 lost is not big deal... Get the right wheels is my suggestion.

 

[trailstandardoffroad]

You can see what happens but most UCA mfgs for the Toyota 120/150 platform specifically state 4.5 is the max backspacing. You might squeeze by with 4.75, but I doubt it.

$150 lost is not big deal... Get the right wheels is my suggestion.

How far off will the scrub radius be with hub centric 1.25" spacers?

 

[1engineer]

Take it from someone who has these exact tires mounted on their 5th Gen 4Runner; you will need to do everything in the book to make these fit properly.
You might have a higher tolerance for horrible rubbing noises and tires gouging out your fenderwells, but if you're anything like me you'll need to get some work done or you will be hating life.
The 295/70 R17 is basically a 34 x 12.5 and are noticeably different than your standard 285/70 upgrade in terms of how much contact they will make with your 4Runner.

Here's a list to give you an idea of what I had to do to avoid these tires making contact with my vehicle with a 3" lift and 8" wide 4" backspaced wheels with no spacers:

AllPro UCA's with 5+ caster dialed in - you are going to need to push the wheels ahead as far as they will safely go.
Body mount chopped as far back as it will safely go
Front bumper installed to clearance that end, otherwise front fender well mod will need to be done.
Should go without saying that the mud flaps have been removed.

This got me to the point where I could use forward and reverse gears with only occasional rubbing while on pavement.

To avoid tire contact during suspension articulation and full steering lock, further and Extensive modification (cutting, grinding, hammering and material replacement) of the rear of the fender wells was required.

See THIS post from my build thread, as well as THIS one.

You forgot to tell the OP he will definitely need a BFH too.

 

[1engineer]

How far off will the scrub radius be with hub centric 1.25" spacers?

Wheel spacers make it even worse. You are wanting to do everything wrong lol. Is this mod for looks only?

 

[Jeremy556]

I could of sworn there were at least 2 threads in the sticky section that cover all of this.

295s on wrong size wheels without any trimming? I predict your tires will be removing plastic parts of your 4runner before you leave the tire shop parking lot.

 

[grumpy514]

This thread.

https://www.youtube.com/watch?v=SpzDIMzt1Qo


Reworking the fender liners will be a absolute must, BCM I believe will be unavoidable without rubbing issues. UCAs are highly recommended unless you want your brand new tires to wear like crazy.

 

[trailstandardoffroad]

No just trying to avoid changing wheels. My wife really likes them and that's the only thing I have working for me when it comes to her. So.....just trying. I know it will have it have more scrub, but I was wondering more if it will make it unsafe.

I understand correct wheels are the best option. And if it comes to it I will go that route.

 

[Vinsil]

They will be here in the morning. Too late to change.

Well, this is a learning experience IMHO.

Wrong wheels, tires too large, no game plan.


No bashing you at all. You have a few choices. You make what you have work...which is not ideal. Unless you don't care about the money and mods you'll need to make it work. Spacers are not a solution, only a bandaid. And yes, your scrub radius will be horrible with the spacers, something most don't consider and yes, I've done spacers in the past and it is not ideal and is I had the choice of new wheels with proper back spacing, that is the best choice.

I'll go on a limb and say..say your doing a spacer lift you don't have a huge budget to work with here. If you do, I apologize. But it seems if that is the route your going.....you have lots of work ahead. A body lift will help as well.....



Good luck!

 

[Vinsil]

No just trying to avoid changing wheels. My wife really likes them and that's the only thing I have working for me when it comes to her. So.....just trying. I know it will have it have more scrub, but I was wondering more if it will make it unsafe.

I understand correct wheels are the best option. And if it comes to it I will go that route.

Ideal scrub radius? Or just the less the better? - Pirate4x4.Com : 4x4 and Off-Road Forum


Read this link to better understand scrub radius.

 

[1engineer]

I could of sworn there were at least 2 threads in the sticky section that cover all of this.

295s on wrong size wheels without any trimming? I predict your tires will be removing plastic parts of your 4runner before you leave the tire shop parking lot.

I think this will be a fine thread.

 

[wfo9]

How far off will the scrub radius be with hub centric 1.25" spacers?

IF you go with a 1.25 wheel spacer. Your back spacing would be 3.75. or (-19mm offset). That is not too bad It will Look great and will be safe. The only issue will be that on full lock turns the tire is going to get close the the fore and aft lower corners of the fenders. (more negative offset from center means more scrub radius) The main issue will be hitting near the body mounts just in front of the doors... and a body mount chop will be required for sure. It might be anyway with 295s....

Good news is... It will look good once you get it worked out.

Clearing for street use is pretty easy. It gets harder when you want it 100% functional off-road.

Also. one trick you might also employ is a 1/2" body lift. I'm about to do one on mine in an attempt to clear 35s. It should be cheap and pretty easy with minimal downside. I would not start there... but something to keep in mind.

 

[trailstandardoffroad]

IF you go with a 1.25 wheel spacer. Your back spacing would be 3.75. or (-19mm offset). That is not too bad It will Look great and will be safe. The only issue will be that on full lock turns the tire is going to get close the the fore and aft lower corners of the fenders. (more negative offset from center means more scrub radius) The main issue will be hitting near the body mounts just in front of the doors... and a body mount chop will be required for sure. It might be anyway with 295s....

Good news is... It will look good once you get it worked out.

Clearing for street use is pretty easy. It gets harder when you want it 100% functional off-road.

Also. one trick you might also employ is a 1/2" body lift. I'm about to do one on mine in an attempt to clear 35s. It should be cheap and pretty easy with minimal downside. I would not start there... but something to keep in mind.

Appreciate all the advice. And that goes for everyone else. I know threads like this get old, (like are you kidding me FNG!). I will admit i started ordering parts with out doing the extensive research I should have done. I just got out of a horrible 2 year relationship with Jeep, and had a lot of pent up mod energy i never got to release on the Jeep. I had a list of exacly what i wanted the jeep to be down to the color of the bolts on the beadlocks.

that all said I have uca's on order, and bmc planned. and trying to sell my wheels on cl. and waiting on scs to get their next shipment in. If i cant get good money for the wheels i will try spacers. not sure though on the wheels.

 

[salong53]

If i cant get good money for the wheels i will try spacers. not sure though on the wheels.

Something that nobody brought up is that the spacers you're considering cost as much or more than the $150 restocking fee for the wheels, when you could just get wheels with the proper backspacing.

This is not a smug statement toward you at all, but I genuinely hope that you document these mods in this thread so that others can see, once again, what all is involved with fitting 33"+ tires on a 4Runner. I look forward to seeing the final product when it's done, but like others I expect it to be a headache. op2: