Oh man, I need the scoop on that too! I assumed I would need 1” spacers to fit that tire with stock rims. That has been my plan until I make a final decision on rims and lift and direction of the build.
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I've heard the terms "Crash Guard" and "Crush Guard" and people talking about removing them to fit the bigger tires. What exactly are they talking about? I think I've seen what they are referring to in videos of people showing what will need to be done to fit bigger tires but have no idea what purpose they serve. It seems kind of cavalier to just remove something named "Crash Guard" and think nothing of it but they may be sorta useless in general and it's not a big deal. However, if they were worthless, why did Toyota install them and then name them "Crash Guard"?
Google "body mount chop".
I'm not familiar with the GX/ 250 yet but owning a F-150 and looking into upsizing tires in the past, I see a lot of people remove these or simply trim them or modify. My assumption is a low speed government regulation for a safety requirement or simply what the manufactures are moving to. This shouldn't have anything to do with a body mount.
hoser
SILVER Star
In an offset frontal crash, the front wheel often pushes into the passenger compartment/firewall. These crash guards help prevent that. They can be positioned in front or behind the front wheels. Some trim levels of the same truck won't have them in order to fit larger stock tires (i.e. Raptor, Sasquatch).
Hiluxforever
SILVER Star
I didn't know the sasquatch removed them, I knew they had travel limiting bumpstops.
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Did you get a matching spare to fit? I crawled under a truck at the dealer today and it looked like 1” over stock was going to be the max for a spare.
ryanjl
SILVER Star
275/70/18 fits in the spare location.
Media - LC 250 & GX550 Picture Thread
Today I saw my first GX550 in the flesh. It was Atomic Silver with black interior. Thought it looked amazing. Got to sit in it too. Just about the perfect size SUV for me. Reminds me of my 80, not as big as our 200. This probably is in our future.
forum.ih8mud.com
While I wait for my LC I started a spreadsheet of tires (AT mostly 3 peak) that fit on the stock wheels and a few near-stock size wheel options. If you hear of any up size tires on stock wheels fitting, not rubbing, and fitting in the spare location, point me to the source and I'll update. There's a FB post saying the Toyo Open Country A/T III LT 285/70R18 (33.7") fits with no rub turning and in the spare location (unclear about full flex) -- so far that's the largest tire I've seen someone say fits the stock wheels. Would be nice to have more confirmation on that size.
Am I missing something, where are the 255/70R18. Some of us like tall and skinny vs fat and round.
I guess I didn't really look at smaller diameter tires. A while back I saw a video where a Toyota/Lexus engineer said these were designed for 33" tires and I've been focused on that. 255/70R18 comes in around 32" on the manufacturer spec sheets I've got. The stock tire on the mid and FE trims is 32.6".
275/70/18 fits in the spare location.
Media - LC 250 & GX550 Picture Thread
Today I saw my first GX550 in the flesh. It was Atomic Silver with black interior. Thought it looked amazing. Got to sit in it too. Just about the perfect size SUV for me. Reminds me of my 80, not as big as our 200. This probably is in our future.
Good morning!
New to this forum, just bought a Land Cruiser trim and is equipped with Dunlop Grandtrek 265/60R20.
I took a physical measurement and the tire is 31.5" diameter.
According tiresize.com it should be 32.5", the OEM is a whole 1" smaller than theoretical, quite a big difference.
I also took a peak under the car and is a full sized spare with the identical tires and rims to the ones installed at the four corners.
What surprised me is that the clearance of the spare tire:
1) tire to the back of receiver is just short of 7/8".
2) tire to a round cross-member (runs parallel to the axle) is 1/2".
3) There are two brackets which the spare tire is snugged against to keep it in position, no gap there.
So to my best approximation, the largest spare that could fit is 31.5" + 1/2" = 32.0".
I went into this thinking 33" is a safe upsize, but now it looks like realistically 32" will be the maximum without special accommodation of the spare tire.
Have I missed anything in this thinking?
What I am learning here is, measure your future new tires to make sure the exact dimensions. Dont just go by sidewall parameters.
Thanks,
Correction:
The limiting factor is the space between the two brackets to the distance to the back of the receiver. With a 31.5" tire in place, the only available gap is the 7/8" between the tire and the back of the receiver, 31.5" tire + 7/8" gap = 32 3/8".
That's 32 1/2" for the optimistic and 32 1/4" for the pessimistic.
Folks have generally had no trouble putting a 275/70R18 AT tire in the spare location, those run at least 33.2". 285/70R18 at 34" os where people report problems fitting it, and if it does fit it hangs down a lot.
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Dimensionally it should only hang down an additional cm. Last weekend I attempted to place a 34" spare (worn out 315/75r16) under the truck. I got it to snug up to the front two frame brackets that limited forward position. But the back of the tire would not raise up all the way to the frame like the OEM spare even though it was behind the hitch and trailer plug bracket. In contact with both of course. I nearly lifted the whole truck with a floor jack trying to force it in another inch. I didn't try to problem solve what it would take to force it in. Personally I want a spare I can raise and lower with minimal extra force. Will a 285/70r18 that measures 33.75" fit? That is my question. I believe we are talking millimeters here and will find that while one 285 snugs up maybe the next won't.
hoser
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Needs one of those VW/Audi expandable spare tires. 
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Needs one of those VW/Audi expandable spare tires.
Funny I looked into finding one of those a while back. It’s nothing new. My 1982 Z/28 had one stuffed in the rear quarter panel with a CO2 can to inflate it.
hoser
SILVER Star
Ha! My good friend had an IROC-Z back in the day. We never had a flat tire so I never knew!
