IRO 3" Lift Adjustable Track Bar Hitting - JeepForum.com
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post #1 of 22 Old 12-29-2015, 02:16 PM Thread Starter
JMZ101586
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IRO 3" Lift Adjustable Track Bar Hitting

Anyone ever have before. My IRO adjustable track bar is hitting the top of my differential pumpkin. It scrapes down the face of it whenever hitting a bump or dip at speed. I've contacted IRO for their take but a quick search I haven't found anyone else with this issue.


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post #2 of 22 Old 12-29-2015, 02:23 PM
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Pics? Are you certain the bar is installed properly?
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post #3 of 22 Old 12-29-2015, 02:25 PM Thread Starter
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Positive. Adjustment side up.

Can't show contact as again it only happens when on the street hitting a dip but here's a pic showing the contact points making it pretty obvious it's hitting.

It's not during flexing either. I've never discoed the front sway bar. It's while on the street and hitting dips in the road at speed.
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post #4 of 22 Old 12-29-2015, 02:27 PM
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Post a pic that shows the whole bar. Perhaps a couple, from different angles, so we might have a chance at seeing what's wrong.
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post #5 of 22 Old 12-29-2015, 02:40 PM Thread Starter
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Side to see lifted
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post #6 of 22 Old 12-29-2015, 02:40 PM Thread Starter
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Looking up
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post #7 of 22 Old 12-29-2015, 02:41 PM Thread Starter
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From side
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post #8 of 22 Old 12-29-2015, 02:42 PM Thread Starter
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Mark on pumpkin
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post #9 of 22 Old 12-29-2015, 03:01 PM Thread Starter
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I was able to find this thread on another group with the same issue as mine.

http://www.jeepsunlimited.com/forums...after-lift-kit

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post #10 of 22 Old 12-29-2015, 03:05 PM
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Do you have adjustable control arms also? It's hard to tell from the pics. If you have them adjusted to push the axle forward, it may be too far forward to clear the bar.
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post #11 of 22 Old 12-29-2015, 03:13 PM Thread Starter
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lowers are new oem replacement

upper are IRO at their shortest setting closest I could get to stock with new moog upper bushings pressed into the axle. I got them as adjustable in the event I wanted to adjust caster but found it unnecessary as it turns drives and handles just fine (minus the clunk).

Problem existed since lifting (before replacing the control arms) and I assumed it was worn control arms which is the only reason I replaced them. The noise continued and I just got time over the holiday break to investigate further and found this (the obvious issue).

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post #12 of 22 Old 12-29-2015, 05:30 PM
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Herd back from IRO yet?? I just installed my JKS adjustable track bar, and theres has a bend to go around the pumpkin. Not sure if that helps, but my 2 cents.

I think they sent you the wrong track bar.
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post #13 of 22 Old 12-29-2015, 06:46 PM Thread Starter
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Quote:
Originally Posted by sniper_trf
Herd back from IRO yet?? I just installed my JKS adjustable track bar, and theres has a bend to go around the pumpkin. Not sure if that helps, but my 2 cents. I think they sent you the wrong track bar.
Yeah I've seen that. JKS has that however IRO is straight and requires a 3" lift to use it to clear the diff. Obviously at 3" mine still isn't clear enough.

I emailed the pics to iro and put in a call to follow up since that seemed easier but no word back yet as to a fix.

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post #14 of 22 Old 12-30-2015, 11:42 AM
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I have an '00 WJ with 3" of lift in front also. I also have the IRO adjustable track bar which I properly installed. Mine doesn't hit my differential at all, but I also have stock UCAs and LCAs. I think your upper adjustables may have it forward a bit. I was surprised to see that you went with adjustable UCAs, but not LCAs. My castor is about 4.5, I don't have DW anymore, but was told that adjustable LCAs would be the only way to get her back to Jeep's recommended 6-6.5.......woops

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post #15 of 22 Old 12-30-2015, 12:22 PM
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Quote:
Originally Posted by Mattyjm View Post
I have an '00 WJ with 3" of lift in front also. I also have the IRO adjustable track bar which I properly installed. Mine doesn't hit my differential at all, but I also have stock UCAs and LCAs. I think your upper adjustables may have it forward a bit. I was surprised to see that you went with adjustable UCAs, but not LCAs. My castor is about 4.5, I don't have DW anymore, but was told that adjustable LCAs would be the only way to get her back to Jeep's recommended 6-6.5.......woops
Yes IRO adjustable UCAs ARE longer than OEM uppers. So when paired with stock LCAs not only are they useless as a means of adjusting caster but they cause a small loss of caster. However if his actually will close down to 15" the length difference would not be enough to cause what looks like an inch or so of interference.

One thing for sure is this has happened before as far back as 2007 and others here have posted about the same thing. I remember a thread here many months back about the topic of IRO sway bars and small lifts. The puzzling thing is this clearance problem does not happen every time. So possibly the bend over the pumpkin is not inconsistant on every bar?

"There's nothing so absurd that if you repeat it often enough, people will believe it." W.J.
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