largest tire with no lift

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ryanjl

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Sound like Zimmerman rotors, which would be fine.

I can't really help you more than that as I don't know much about 20 inch wheels. Are the tires currently mounted on the wheels? Did you see how much they were hitting the upper joint?
 

Kelly Barrie

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Yes, they are currently mounted and balanced. When the tech tried to mount them he could not get the fronts to sit flush. They appeared to be hitting the ball joint enough that he didn't want to even try and put lug nuts on. I still think he just might not have known enough about these vehicles. It's a bit of a drive, but I'll take my rig to my indy landy specialist and have him look at it. I talked to him on the phone he said I might need spacers (hope not), but to bring it down and he'll give it a look.
 

jwest

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I'm hoping the knowledge base here can help shed some light on a mysterious tire fitment issue. After reading many, many tire threads, I decided to run nittro terra grapplers 265/50/20 on 20" oem ten spoke rims (2012 LR4 HSE). So all excited, I took the rims and tires to get fitted, rears went on fine, but much to my surprise the front tires would bump into there upper ball joint preventing a flush mount. Suffice enough to say, I had to give up, load the wheels back into the truck and leave feeling pretty defeated. As I drove away, I noticed that the suspension had been set to off road height, not sure if this was an accident on the techs part, but I didn't have time to return that day and ask some more questions. Any ideas, thoughts on what the problem might be, shouldn't the tires fit in off road mode anyway? Any help would be greatly appreciated.

This sounds like a detail is being missed. You’re sure they’re 265/50-20?

That’ll be the same as a 265/70-18 which, on a factory 8” wide wheel, absolutely will not rub on the upper ‘control arm’. (Yes there is a ball joint connecting it to the knuckle but it’s impossible to rub on the balljoint itself).

I’m curious to hear what’s going on here. The wheels offset would have to be oddly inboard such that they aren’t even factory. Makes no sense really but there are some 8” wide 20’s so maybe by chance people who’ve been doing these sizes are using wider offset wheels.

Still, I suspect a surprise explanation to be found.

If the wheel center were similar, your wheel would reach 1/4” closer to the UCA than mine so that could get near closing the gap but stil it would surprise me. Some tires however have widely varying shoulder block widths so it could honestly be a combination of things here. I actually have 285/70-18 on factory 18” that don’t rub the UCA though so you’ll need to just mount it and take detailed photos.
 

Kelly Barrie

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Kelly Barrie

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Incidentally, did some more research and my oem 19" rims had a 57mm off set and the new oem 20" have a 53mm offset.
 

jwest

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Kelly Barrie

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That's weird, let's try that again.
AK2I0733_B.jpg
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AK2I0738_C.jpg
AK2I0735_A.jpg
 

jwest

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Makes no sense at all to me. I jus remembered my first set of wheels many yrs ago were 20” stormer that came in SC RRsports. They were 9” wide and I tried 285/50-20 which just barely worked on one lr3 but not my 2nd one. It was a tighter tire though, the proxes ST.

Looking at that side profile which is totally perfect and square with wheel, maybe the shop guy didn’t have the mounting faces flat and he gave up too quickly.

Our wheels can wobble quite a bit before setting flat so I’d try again, especially if you have them on extra wheels just sitting around.

Do note though the tightest condition to upper control arm will be at full downward extension so you’ll have to see how it is there.

I never extend the suspension for tire fitting. I don’t think that’s accurate either, I swear I read the procedure is to lock in access. I don’t bother with any of that at home though because were just lifting a corner at a time.

In fact now that I think of it, the guy wasn’t suppose to do that because then the system will try to keep reaching lower. Pretty sure with a frame/post lift it is meant to have it locked in access mode so suspension isn’t trying to extend and screw things up.
 

Kelly Barrie

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That's what I thought too, makes no sense. I think you might be right about the over extension, that was my initial gut feeling. Gonna take it down to my Landy guy, I'm sure he'll get them on, he has an LR3 and 4 with all the overloading goodies, plus he's an ex master LR tech. Hopefully, I'll get it sorted out this week. Thank you for all the info, it really is helpful. I have to say the peeps on this forum are really great. I'll be sure to post sum pics of the rig when I'm done.
 

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