Fitting 275-55-20 on 2006 4Runner - Wheel/Tire Experts Come on in Please

[luke87gt]

Hi guys,

The stock tire size on my 2006 4Runner XSP is 265-50-20. The tires are 30.4in tall and mounted to the 20x8.5 (+15mm offset) Enkei rims that came on the XSP model from the dealer. My 4Runner is currently at stock ride height and running a set of uninspiring Pirelli Scorpion Verde all season tires. They are nice and quiet, but just don't look that great. My avatar at left shows the wheels.

I've wanted to add a slightly taller and more aggressive all-terrain tire. Here are the parts I have sitting in the garage, but I wanted to run this by the experts before starting any work.


Tires: 275/55/20 BFG A/T KO2 (these are just shy of 32in tall. Even though these are only ~1.5in taller and 10mm wider, they absolutely dwarf the stock size tire when I put the two next to eachother)

Lift: Daystar leveling kit (this is just a 1in polyurethane front spacer, but due to the suspension geometry, it lifts the front end by closer to 2in)


After seeing how much larger the new tires look compared to the stock sized tire, I've started to get a little concerned about the front fit. I am expecting that the front wheel well plastic will have to be moved forward slightly and I may have to trim a little off the front bumper. But I'm starting to wonder if I should return the leveling kit and instead get a Daystar 2.5/1.5 kit? If I can get everything to clear with the leveling kit, I'd rather go that route since I don't want to lift the 4Runner more than I need to (I know, crazy talk isn't it, lol).

I know that many guys on this forum are running the stock 17" rims with 265/70/17 (31.6in) tires and 1in spacers, so that would be comparable to what I am trying to do... The tires I will be using are still 0.25in taller however.

Any insight or input would be much appreciated. As mentioned above, I don't mind doing a little clearancing, but I also don't want to set myself up for something that's going to turn out to be a major headache.

I know that plenty of guys have been through this and probably could predict what I'm in for (although most look to have done this with 17in or 18in rims, and not 20s - not that this should matter much).

Thank you, and I look forward to your reply

Luke

 

[Okibum03]

I was running 275/55R20's on MB Smooth 20x10 +20 offset on my 2007. I was also using a 25mm spacer because the hub bore of the wheels wasn't large enough for the 4runner which brought the offset to -5. I have the Daystar 2.5/1.5 spacer kit. I did have to remove the front mud flaps and trim the front bumper and splash guard. I have since swapped back to 18's with 275/65R18 that are pretty much the same size as the 20" tires.

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[luke87gt]

Thank you for the reply.

A 20x10 (-5mm offset) is going to be much harder to clear than the situation I outlined in my oringinal post. Your wheels were out 39mm further to the outside than mine will be. So no surprise that you were experiencing some problems when turning.

I'm very tempted to return/sell my Daystar leveling kit and get the Daystar 2.5/1.5. At least then I'll be nearly certain there will be no problems with clearance.

By the way, what's the width & offset on your 18's above? What brand/model wheels are those? Looks good!

 

[inscarguy]

I have a '06 with a 2.5/1.5 lift, XSP rims a 275/55/20 Michelin Defender LTX . no rubbing, ft flaps still on. no issues. was going the BFG route but Michelin tire was lighter, more fuel efficient, better in packed down snow and come with a warranty. was also over 400.00 cheaper.

here is a pic:

 

[luke87gt]

INSCARGUY,

That's exactly what I was looking for, and glad to see you aren't rubbing with the same rims and tire size that I will be using. And it doesn't look like you are using spacers? Do you have any other pics (maybe front/rear profile)?

And you are right, the BFG KO2 are incredibly heavy, but they sure do look good!

I've decided to sell the Daystar leveling kit and get the Daystar 2.5/1.5 kit. I'm still on the fence about using a small spacer (20mm maybe)...

Thanks again for the reply.

 

[tonytoy]

Hey,

I had search a lot to do the same and i ended up using bilsteins 5100 at 1.75 in. in the front and using the original springs (coils) (I have neither wheel or suspension spacers and i have the XPS v6 4wd). i got level and the tires fitted well. i only had a minor rub at full lock in the front inner liners and the mud flap. So i did move forward the inner liner and modify a bit my mud flaps.

It rides well and i dont feel much the difference from the BF g-force i had before. (-1.5 gpm.) The only difference is that if feels that it bottoms out at the back when the truck is heavy and going to a bump.

The pictures are not the best but is what i got

 

[luke87gt]

Tony, that's awesome. It's the first time I've seen XSP wheels with all-terrain tires, sweet!

Would you confirm that those are 275/55/20?

Also, if you take the 17x7.5 30mm sport wheels and add a 1.25" spacer, the wheel poke is nearly identical to our XSP wheels (20x8.5 15mm) without a spacer, which is good news.

It actually doesn't seem like any spacers will be needed...

 

[inscarguy]

INSCARGUY,

That's exactly what I was looking for, and glad to see you aren't rubbing with the same rims and tire size that I will be using. And it doesn't look like you are using spacers? Do you have any other pics (maybe front/rear profile)?

And you are right, the BFG KO2 are incredibly heavy, but they sure do look good!

I've decided to sell the Daystar leveling kit and get the Daystar 2.5/1.5 kit. I'm still on the fence about using a small spacer (20mm maybe)...

Thanks again for the reply.

no spacers, I took them off for the XSP rims. they stuck out too far. with the 275's its flush with the flare.

I agree the BFG's are good looking but I chose function vs looks. I was this close to pulling the trigger on the KO2's. I had the KO's and they looked great but loud, horrible in packed down snow and I could watch my fuel gauge move.

here is a side pic:

 

[luke87gt]

Brian, looks great!

I heard that the KO2 are quieter than the KO.

However, you bring up a good point about gas mileage. I've heard that gas mileage could suffer as much as 20% with the wide/tall/heavy all-terrain tires compared to the stock pizza cutters. That's significant!

 

[Okibum03]

The 18's I have are Raceline Renegade 6's 18x10 -19. No spacers. I did have to swap out the front wheel studs to longer ones because the fronts are shorter than the rear studs. I had the Goodyear duratracs previously and they were a lot louder than the KO2's and the ride seemed a bit more rough with the goodyears. I average about 18-18.5 mpg with the KO2's on a daily 60 mile round trip commute and they aren't loud at all compared to the goodyears.


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[tonytoy]

Yes, they are 275/55/R20. I think i am the first one doing this tire/wheel combo on this forum. I really struggled to find out if they would fit since there is no much info in this or any other forums for 20s and K02 unless is a 5gen.

I live in florida and for gas millage i can see a drop of 2 mpg. I barely hear the tires as our Borla exhaust is louder than the tires. I had the Mud terrains KO2s on my 09 tacoma and definitely the All terrain are way quieter.

If you really like beefier tire and all good around just pull the trigger. It would look good and be functional. I believe , if you lift your truck 2.5 in. istead of 1.75 in as i did, you wont have any rubbing at all.

Good luck and post the pics when you are done

 

[luke87gt]

Yes, they are 275/55/R20. I think i am the first one doing this tire/wheel combo on this forum. I really struggled to find out if they would fit since there is no much info in this or any other forums for 20s and K02 unless is a 5gen.

I live in florida and for gas millage i can see a drop of 2 mpg. I barely hear the tires as our Borla exhaust is louder than the tires. I had the Mud terrains KO2s on my 09 tacoma and definitely the All terrain are way quieter.

If you really like beefier tire and all good around just pull the trigger. It would look good and be functional. I believe , if you lift your truck 2.5 in. istead of 1.75 in as i did, you wont have any rubbing at all.

Good luck and post the pics when you are done

Tony, yes, I'm pretty sure you are the only guy I've ever seen running XSP wheels and all-terrains, it looks great! And seeing your picture above has really solidified that this is the combo my wife and I want to run.

Regarding the Borla exhaust... we found it overly obnoxious and got rid of it after a few months of owning the car. I actually sold the kit on this forum and got a stock cat-back muffler for it and we are much happier. We can talk on the cell phone again while riding in the car...

I have my Daystar leveling kit posted in the classified section and I'll order the Daystar 2.5/1.5 once the leveling kit sells.

I will post pics when done. Thanks again! And these Enkei's kick ass!

 

[06Shadow]

I have 285/50/20s

I have the Daystar Budget in the front and 1" in the back. They only rub backing up while turning. The are the most reasonably priced tires for the size. This is my second set. I really like them and will probably by another or may go to Atturo Trail Blade MT as they also come in this size.

 

[luke87gt]

I considered the slightly wider and slightly shorter 285-50-20 but found out that the KO2 doesn't come in that size. Kinda had my heart set on the KO2.

But I agree the 285-50-20 look great too.