Opinions on going from 30.5" to 32" tires on IRO 3" lift - JeepForum.com
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Unread 01-18-2012, 12:08 PM   #1
gtg413i
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Opinions on going from 30.5" to 32" tires on IRO 3" lift

Thought I'd add some pics of what 30.5" tires look like disconnected with bump stops on 3" lift and get opinions on 32" tires. I installed a 3" IRO lift on my 03 overland. I installed 265.65/17 tires (30.5") with JK wheels (max diamater tire that would match a spare and still fit in the spare part). After taking the jeep to a an offroad park trail head, my tires looked pretty weak so looks like I need more meat. Below are pics of the front tire at full uptravel and hitting the bump stop extension with front dissconnected.From everything I see, it looks like I would have had to trim if not for the bump stop. So, today I bought a set of rubicon tires BFG KM2 (255/75/17 - 32.1" new, but they have 70% tread left $385 for 4). I plan to use this second set for offroading trips only and remove my front bumper for offroading), and strap the spare in the cargo area. With the bumpstops (front and rear) and not running my front bumper cover, and disconnected I'm hoping to avoid too much if any trimming, but might have to do washer bottle relocate and add wheel spacers. Anyone with that tire size on 3" lift want to chime in how much was needed to trim for wheeling disconnected? Also, how much of a PITA is it to have to switch tires and remove the bumper for offroad trips?

img-20120101-00156.jpg   img-20120101-00158.jpg  
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Unread 01-18-2012, 01:57 PM   #2
alwaysHI
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I'm running 265/75/16 (31.8 roughly a 32) on IRO 3" on stock silverblade #1. I had to extend my bumpstop 3" in order for me to turn lock to lock, while disco'd, and not eat my fender or washer bottle.
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Unread 01-18-2012, 03:12 PM   #3
gtg413i
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Quote:
Originally Posted by alwaysHI View Post
I'm running 265/75/16 (31.8 roughly a 32) on IRO 3" on stock silverblade #1. I had to extend my bumpstop 3" in order for me to turn lock to lock, while disco'd, and not eat my fender or washer bottle.
I think that's what I got for bumpstop extension link and should have about 31.8 diamater as the tires are worn. It looks like you don't have to remove the front bumper to wheel, did you have to trim front and rear? Funny enough, I'll be passing through Hilo on Sunday going to the volcano park for vacation. Will look out for your wj.
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Unread 01-18-2012, 03:27 PM   #4
alwaysHI
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haha right on man! that place gets pretty cold at night...

and i only trimmed my front bumper, the rear tucks just fine
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Unread 01-18-2012, 04:11 PM   #5
shockracer
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How did you get a 265/70/17 to fit in the spare tire well?
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Unread 01-18-2012, 06:36 PM   #6
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Quote:
Originally Posted by alwaysHI
I'm running 265/75/16 (31.8 roughly a 32) on IRO 3" on stock silverblade #1. I had to extend my bumpstop 3" in order for me to turn lock to lock, while disco'd, and not eat my fender or washer bottle.
Interesting. Same setup yet I've never had problems with my washer bottle when wheeling. Never extended my bumpstops either
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Unread 01-18-2012, 07:54 PM   #7
alwaysHI
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haaa??
you disconnected your front sway bar too?? i find that hard to believe you not eating fender lock to lock either.
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Unread 01-18-2012, 08:09 PM   #8
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32's work fine on mine so far, but I don't have a lot of wheeling in yet. Same suspension setup.
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Unread 01-18-2012, 08:21 PM   #9
WeThePeople408
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I just lifted my 04 with a 3" IRO and run 265/70/17's with no rubbing. However, I don't currently run discos. I have to admit it is a tight fit but looks great.
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Unread 01-18-2012, 10:22 PM   #10
gtg413i
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Quote:
Originally Posted by shockracer View Post
How did you get a 265/70/17 to fit in the spare tire well?
it's a 245/70/17 spare that fits snug in the tire well to match the 265/65/17's. the cover sticks up unnoticably when the tire is fully inflated. Should have been more specific, but the tire diamaters of both are the same + / - 0.1"
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Unread 01-19-2012, 07:13 AM   #11
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I have an 04 Overland with an IRO 3" lift and I run Goodyear Duratrac 265 75 17's. I have a TrailReady front bumper and have chewed the absolute CRAP out of the inner fender wells both front and rear. The treads have grabbed wiring harnesses, washer bottle and everything else under there at some point or another. I ended up putting on a set of spacers (I know, I know) to keep the inner tire from rubbing on the control arm during tight turns.

I would love to run 35's on my WJ, as I think it would look cool (this is my shop truck as well as my DD) but can't afford a damned Long Arm lift and $10,000 in upgrades.
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Unread 02-03-2012, 04:31 PM   #12
gtg413i
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Here's a pic of the tires mounted on my original rims. I'm getting closer. The tires look much larger now that they are mounted and I've got some trimming in my future. I also bought 1.5" spacers (jeepforum member) and zj washer bottle. More to come.
jk-takeoff-comparison.jpg  
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Unread 02-03-2012, 04:44 PM   #13
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With my IRO 3 inch lift I run 255/70R17 on rubicon wheels and even with 1 inch wheel spacers I still hit the bumper when going over certain bumps. I have tried to trim as little as possible so it still looks ok but I guess now I may have to get more aggressive.
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Unread 02-03-2012, 10:47 PM   #14
gtg413i
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Quote:
Originally Posted by metalhead View Post
With my IRO 3 inch lift I run 255/70R17 on rubicon wheels and even with 1 inch wheel spacers I still hit the bumper when going over certain bumps. I have tried to trim as little as possible so it still looks ok but I guess now I may have to get more aggressive.
Metalhead, can you measure your tire diamaters on the vehicle?
The reason I aski is I am only getting 31" diamater. Maybe it is because the wheel has some weight on it so it doesn't measure closer to 32", but when driving it will add some to the diamater.

The specs from BFG say they are 32.1" diameter with 19/32" or .6" tread depth.
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Unread 02-04-2012, 07:40 AM   #15
metalhead
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I run falken rocky mountain ATs and they say 31.1". When I measure them they are almost exactly 31"
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