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Old 07-26-2011, 01:39 PM   #1 (permalink)
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Default Biggest Tire Size on Stock Rim

I have a 1992 Range Rover currently running 225x75x16 General Grabber AT2 tires on the TWR 5-spoke stock rim. My Rover has a 2" spring lift. What is the biggest tire that will mount on these rims and also not have a rubbing problem? Can I put 285x75x16 (32") tires on? I need more clearance off-road but I like the stock rims.
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Old 07-26-2011, 09:27 PM   #2 (permalink)
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Stock rims are 16"X7" wide. A 285/75r16 tyre is over 33" tall and 11.5" wide. Most (all) tyre manufactures recommend a minimum 8" wide rim for that size. You can just squeeze it on the stock rim but be aware that you run the risk of 'pinching' the tyre on the rim. This could cause a doughnut like effect and cause improper tread contact and tyre wear if you drive on the road alot, off road, it doesn't matter. One of the nice things about stock Range Rover wheels is they have a nice wide safety bead edge so it will be hard (but not impossible) to drive the tyre off the bead.

With a little trimming the tyres will fit with a 2" lift but the width will cause issues with the steering and articulation. You could use wheel spacers but then you will need to get serious with the sawsall.

Lot's of folks have run 285/75r16 on classics. Another option is a 255/85r16 tyre, also a 33" tall tyre but only 10.5" wide so it will fit the wheel correctly and cause less issues with the lift. Both sizes have their place.

Hope this helps.
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Old 07-27-2011, 05:30 AM   #3 (permalink)
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Roverandom,

Thanks for good info. Will the 255 tire cause rubbing issues during steering and / or during maximum articulation?

I would be fine with a 255x85 tire size. Just looking for a little more clearance under my axles and differentials. I think the tires I have on now are about 29 or 29.5" tall. And in reality they allow me to go most places the big-tired trucks go, if I'm careful with my line.
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Old 07-27-2011, 10:37 AM   #4 (permalink)
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With a 3" lift under full articulation I had minor body contact at the rear fender well door lip area running 255/85/16.

I would recommend sticking with a 32" but you may still have a bit of rubbing. Either with 235/85 or 265/75 for a wider tire.
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Old 07-27-2011, 01:03 PM   #5 (permalink)
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Army, was there any rubbing during normal steering? I still have swaybars connected and rear does not have extended length shocks, so that probably limits rear articulation.
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Old 07-27-2011, 02:49 PM   #6 (permalink)
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there was rubbing at full lock. I adjusted the steering stops and it wasn't to bad then. With a 2" lift though I would think your going to see rubbing regardless with 33" tires, unless you cut the openings.
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Old 07-28-2011, 05:34 AM   #7 (permalink)
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Maybe what I'll do is add a 2" body lift to gain clearance for the tires. How difficult s it to add a body lift? Do you just add the spacers to the body mounts one at a time? Anything get messed up like shift / steering / transfer linkages?
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Old 07-28-2011, 07:19 AM   #8 (permalink)
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Unbolt the body and raise it up and slide in the new spacer pucks. Steering shaft is always good to extend but some get away without doing it. Shift linkages work out fine if memory serves. Seat belt mounts in the rear need extended.

I have the kit with the extended steering shaft already done but I've never got around to installing it. Didn't really need it with the RTE 3" springs
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Old 07-28-2011, 09:12 AM   #9 (permalink)
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how many body mounts are there? Do they unbolt from underneath or from inside under the carpet, or both?

Do you have a kit you wanted to sell?
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Old 07-28-2011, 09:57 AM   #10 (permalink)
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Do a search on it to be sure but if I remember correctly it's 8. The kit i have is missing the extenders for the rear seat belts. I'm sure if you wanted it we could work out a deal since I doubt I'm going to use it.
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Old 07-28-2011, 10:12 AM   #11 (permalink)
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I guess I'm wondering why the seat belts need extensions? Aren't they bolted to the rearmost pillars, the rear wheel well, and the female receivers bolted to the floor pan?

Regardless, when I swapped interiors in my Classic the rear seatbelts fully retracted and so I don't even have them installed (except center lap belt).

How much would you want for your kit?
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Old 07-28-2011, 10:21 AM   #12 (permalink)
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Say $135 plus shipping?
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Old 07-28-2011, 10:26 AM   #13 (permalink)
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Did a bit of research...is the radiator mount affected at all? Is there any welding or anything like that involved? And did you say how tall the lift was? 2"?

$135 doesn't seem too bad, I just need to decide if I actually want to do it and make sure it will work for me.

Thanks
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Old 07-28-2011, 10:36 AM   #14 (permalink)
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It does have the radiator spacers. The welding has already been done on the kit I have. That is for extending the steering shaft.
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Old 08-25-2011, 05:10 AM   #15 (permalink)
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Body lift is now installed (Not a fun ordeal). I really want 33" tires, maybe go with the 255x85x16 size. I'm not adverse to some minor fender trimming if necessary.
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