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-   -   Help fitting 255/80 r17s (https://www.toyota-4runner.org/4th-gen-t4rs/297035-help-fitting-255-80-r17s.html)

Clarkson! 04-30-2021 07:22 PM

Help fitting 255/80 r17s
 
Hi Everyone, After having put in JBA upper control arms, and redoing the suspension with Bilsten 2.3" springs in the rear, and 5100s up front with what I believe are FJ springs. From what I can tell using a tape measure this has lifted and leveled me a little over 2.25" all the way around. Reading some of the posts I felt optimistic I could get the Cooper ST-MAXXs in 255/80 r17s to fit...I was wrong. At first I thought they fit, then when I was turning the wheel they would bump the front edge of the UCA. As a backup plan I bought spacers. Put those on and am now clear of the UCA but am catching the rear of the fender flare and just grazing the body mount. Im not sure where to go from here. Im considering adding a 1" spacer on the rear and going up to the highest notch on the bilsteins up front which should give me about 3/4" more up front. However, not sure this will solve my problem or is needed. Need some suggestions on what will be the best solution here to get these to fit. Do I need to just find a place to do a body mount chop? Is it possible an alignment tech could push the wheels far enough forward? Im really at my wits end here and tired after 2 days of monkeying with this thing and am open to suggestions. Any help is greatly appreciated!:help:

montijo505 04-30-2021 07:32 PM

Quote:

Originally Posted by Clarkson! (Post 3632980)
Hi Everyone, After having put in JBA upper control arms, and redoing the suspension with Bilsten 2.3" springs in the rear, and 5100s up front with what I believe are FJ springs. From what I can tell using a tape measure this has lifted and leveled me a little over 2.25" all the way around. Reading some of the posts I felt optimistic I could get the Cooper ST-MAXXs in 255/80 r17s to fit...I was wrong. At first I thought they fit, then when I was turning the wheel they would bump the front edge of the UCA. As a backup plan I bought spacers. Put those on and am now clear of the UCA but am catching the rear of the fender flare and just grazing the body mount. Im not sure where to go from here. Im considering adding a 1" spacer on the rear and going up to the highest notch on the bilsteins up front which should give me about 3/4" more up front. However, not sure this will solve my problem or is needed. Need some suggestions on what will be the best solution here to get these to fit. Do I need to just find a place to do a body mount chop? Is it possible an alignment tech could push the wheels far enough forward? Im really at my wits end here and tired after 2 days of monkeying with this thing and am open to suggestions. Any help is greatly appreciated!:help:


Try to get the alignment tech to get as much caster as possible, should move the wheels forward in the wheel well and help. If it doesn’t, get a cab mount chop and trim the plastic.


Sent from my iPhone using Tapatalk

ads2539 04-30-2021 07:55 PM

I have no rubbing with 255/80r17 tires (33.1”) on 5th gen rims (17x7.5) and a full 3” in front, 2” in rear and 1.25” wheel spacers. I also have a 1” body lift, which helps clear the fenders. The full 3” suspension lift in front clears the body mounts. The body lift doesn’t affect the body mount clearance. I haven’t fully compressed the suspension, so I don’t know if there would be rubbing with the wheels stuffed. Daily driving, no rubbing. A pic of my set up is in my signature below.

SA-Overland 04-30-2021 08:45 PM

Quote:

Originally Posted by ads2539 (Post 3632991)
I have no rubbing with 255/80r17 tires (33.1”) on 5th gen rims (17x7.5) and a full 3”

Have you measured the actual tire yet, mounted? Just curious. I have the same rims/tires sitting in my garage.

Clarkson! 04-30-2021 09:30 PM

Quote:

Originally Posted by montijo505 (Post 3632982)
Try to get the alignment tech to get as much caster as possible, should move the wheels forward in the wheel well and help. If it doesn’t, get a cab mount chop and trim the plastic.


Sent from my iPhone using Tapatalk

Thanks, will give that a shot and see if we can get clear enough.

Clarkson! 04-30-2021 09:32 PM

Quote:

Originally Posted by ads2539 (Post 3632991)
I have no rubbing with 255/80r17 tires (33.1”) on 5th gen rims (17x7.5) and a full 3” in front, 2” in rear and 1.25” wheel spacers. I also have a 1” body lift, which helps clear the fenders. The full 3” suspension lift in front clears the body mounts. The body lift doesn’t affect the body mount clearance. I haven’t fully compressed the suspension, so I don’t know if there would be rubbing with the wheels stuffed. Daily driving, no rubbing. A pic of my set up is in my signature below.

Thanks, sounds like your lift is about where I need to be. Think I will be close to the 3" mark if I bump up one more notch on the front struts.

Clarkson! 04-30-2021 09:33 PM

Quote:

Originally Posted by SA-Overland (Post 3633014)
Have you measured the actual tire yet, mounted? Just curious. I have the same rims/tires sitting in my garage.

Haven't measured the actual tire/wheel yet, will check in the morning and let you know what I find.

SA-Overland 04-30-2021 09:54 PM

Quote:

Originally Posted by Clarkson! (Post 3633031)
Haven't measured the actual tire/wheel yet, will check in the morning and let you know what I find.

Cool, thanks!

ads2539 04-30-2021 10:30 PM

Quote:

Originally Posted by SA-Overland (Post 3633014)
Have you measured the actual tire yet, mounted? Just curious. I have the same rims/tires sitting in my garage.

I also haven’t measured the tires on my 4R. I do have about 6 months of (covid) use with them. They are definitely taller than my 255/75r17, 265/70r17 and 265/75r16 tires, which are all 32”, give or take 1/10” or so.

I can also measure them tomorrow.

ads2539 05-01-2021 10:54 AM

Quote:

Originally Posted by SA-Overland (Post 3633014)
Have you measured the actual tire yet, mounted? Just curious. I have the same rims/tires sitting in my garage.

I just measured the wheels/tires on my 4R.

The four tires mounted and on the vehicle are approx. 32” because of the weight of the vehicle.

The spare, that is mounted and on the roof rack, is the full 33.1” it claims to be, maybe even 0.1” to 0.2” taller in the middle from the 40+ lbs of inflation (E load rating).

Clarkson! 05-01-2021 02:37 PM

Quote:

Originally Posted by ads2539 (Post 3633138)
I just measured the wheels/tires on my 4R.

The four tires mounted and on the vehicle are approx. 32” because of the weight of the vehicle.

The spare, that is mounted and on the roof rack, is the full 33.1” it claims to be, maybe even 0.1” to 0.2” taller in the middle from the 40+ lbs of inflation (E load rating).

This is essentially what I am measuring as well...just a hair over maybe about 32 and 1\4"

originalg00kster 05-01-2021 04:07 PM

Quote:

Originally Posted by ads2539 (Post 3632991)
I have no rubbing with 255/80r17 tires (33.1”) on 5th gen rims (17x7.5) and a full 3” in front, 2” in rear and 1.25” wheel spacers. I also have a 1” body lift, which helps clear the fenders. The full 3” suspension lift in front clears the body mounts. The body lift doesn’t affect the body mount clearance. I haven’t fully compressed the suspension, so I don’t know if there would be rubbing with the wheels stuffed. Daily driving, no rubbing. A pic of my set up is in my signature below.

until you actually off road...you'll be rubbing like a mfer.

to the OP, just get a BMC and call it a day.

Bossman 05-01-2021 04:51 PM

255/80r17 Cooper ST Maxx

How to fit 255/80/17 with 2.5 Inch Lift

255/80/17 wit 3.5 inch lift?

Running 255 80r17s? Come on in

Tires to big?

ahe242 05-01-2021 05:57 PM

Quote:

Originally Posted by Clarkson! (Post 3632980)
Hi Everyone, After having put in JBA upper control arms, and redoing the suspension with Bilsten 2.3" springs in the rear, and 5100s up front with what I believe are FJ springs. From what I can tell using a tape measure this has lifted and leveled me a little over 2.25" all the way around. Reading some of the posts I felt optimistic I could get the Cooper ST-MAXXs in 255/80 r17s to fit...I was wrong. At first I thought they fit, then when I was turning the wheel they would bump the front edge of the UCA. As a backup plan I bought spacers. Put those on and am now clear of the UCA but am catching the rear of the fender flare and just grazing the body mount. Im not sure where to go from here. Im considering adding a 1" spacer on the rear and going up to the highest notch on the bilsteins up front which should give me about 3/4" more up front. However, not sure this will solve my problem or is needed. Need some suggestions on what will be the best solution here to get these to fit. Do I need to just find a place to do a body mount chop? Is it possible an alignment tech could push the wheels far enough forward? Im really at my wits end here and tired after 2 days of monkeying with this thing and am open to suggestions. Any help is greatly appreciated!:help:

I tried the 255/80/17 Cooper ST Maxx tires with the stock wheels and JBA high caster arms as well. I have a Dobinson's 2.5" front / 1.5" (~) rear lift. Those tires are just too tall for those arms with the stock wheel offset. The 5th Gen wheels with the -15mm offset move the tire outward about an additional .6" inches from the arm and allow for pretty normal turning. There is still plenty of room between the body mount and tire with that set up on mine. You'll want to make sure your caster is close to 4 degrees to get it away from the body mount. My front plastic is also trimmed up, but that's not a big deal.

But I gotta agree that if you can find a place to chop your mounts for a good price, do that with the spacers and you should be happy with it and won't have to worry much about rubbing if you get aggressive. Although, the rears get awful close to the body when stuffed without a body lift.

Clarkson! 05-02-2021 09:22 PM

Quote:

Originally Posted by ahe242 (Post 3633206)
I tried the 255/80/17 Cooper ST Maxx tires with the stock wheels and JBA high caster arms as well. I have a Dobinson's 2.5" front / 1.5" (~) rear lift. Those tires are just too tall for those arms with the stock wheel offset. The 5th Gen wheels with the -15mm offset move the tire outward about an additional .6" inches from the arm and allow for pretty normal turning. There is still plenty of room between the body mount and tire with that set up on mine. You'll want to make sure your caster is close to 4 degrees to get it away from the body mount. My front plastic is also trimmed up, but that's not a big deal.

But I gotta agree that if you can find a place to chop your mounts for a good price, do that with the spacers and you should be happy with it and won't have to worry much about rubbing if you get aggressive. Although, the rears get awful close to the body when stuffed without a body lift.

Thanks, I think a 1\2" spacer probably would have done the trick....think I will have to budget for some wheels similar to yours in the near future. Have some follow-up calls to make tomorrow on the body mount chop and plan on going through with it to make sure I can get this back off-road without too much rubbing.


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