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Old 06-12-2014, 05:59 PM
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Installing the IRO adjustable rear A arm

I posted this in the Suspension section too but just wanted to give it some attention over here too.


Has anyone installed this arm? My 03 has 4" IRO springs with stock arms and I've had a clunk for awhile now. Pretty sure its not shocks and the rear a arm looks original so (sorta against my better judgement) I ordered the IRO rear adjustable a arm. Its nice and beefy, not a piece of paper with it. Instructions, diagram nothing, really pretty shitty of a company not to include anything with a $300 part. Anyways, removal of my old arm was really easy, I installed the IRO arm with the two side bushing bolts first. Now trying to pull the joint end down into the cup is pretty difficult. I was trying to use rachet straps but I didn't have much luck, plus all that seems to do is put the side bushings at extreme angles. I don't know what I'm gaining really. At rest, the joint sits about 3-4" from where the bolt hole is on the bracket. This is all with the Jeep sitting on the ground. Am I missing something? Is this arm a retarded design? I'm leaving for Colorado with the rig in less than a month so I need to get this and a bunch of other things buttoned up. Thanks for any tips.
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Old 06-12-2014, 10:52 PM
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Re: Installing the IRO adjustable rear A arm

Here's a link with a pic of one installed. Could you have mounted it upside down? Not trying to be a smartass but with no instructions who knows. 2003 WJ Grand Cherokee Limited - Minimal Lift, Maximum Performance - Off-Road Magazine
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Old 06-13-2014, 06:12 AM
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Re: Installing the IRO adjustable rear A arm

Thanks, I saw that page too. I thought maybe I did need to flip it but I compared the bushings orientation to the original that came out. Plus the "iron rock offroad" lettering would be upside down. Thing is there isn't any angle to the bar no matter what. For me, it almost seems like the mount on the diff side needs to be up another 3". Otherwise I'm just pulling down on the arm which is putting the bushings at a crazy angle. Thank you for the response though.
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Old 06-13-2014, 12:19 PM
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Re: Installing the IRO adjustable rear A arm

Ok man, you were probably right. Talked to IRO, they flipped the bushings so it would be the opposite of how they were stock. So I need to flip it. Hopefully its that simple, some simple instructions would have made that clear. Not to mention with the arm flipped, the writing is backwards from below. Whatever. Thanks again, ill post back.
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Old 06-14-2014, 05:03 PM
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Re: Installing the IRO adjustable rear A arm

It fit great. Nice and solid. My clunking is gone and the rearend feels tighter.
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Old 06-15-2014, 04:10 PM
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Re: Installing the IRO adjustable rear A arm

Cool! Glad to see ya got it all sorted.
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Old 06-16-2014, 03:52 PM
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Re: Installing the IRO adjustable rear A arm

Glad you got it installed. That is one great piece of hardware. I wish it would work on the UC springs but they are not 2" and I don't want that much life.
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Old 06-16-2014, 05:10 PM
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Re: Installing the IRO adjustable rear A arm

Ya I kinda wanted to just go with a Clayton lift, but there was just so much to do before I leave for this trip. I didn't want to be sorting out all the loose ends after an install like that ya know? But ya the arm is very beefy, the rearend feels much tighter.
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Old 06-16-2014, 05:12 PM
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Re: Installing the IRO adjustable rear A arm

Old and busted and the new hotness.
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