Thinking about upgrading to long arms -
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Unread 10-31-2013, 11:02 AM   #1
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1996 ZJ 
Join Date: May 2013
Location: Knoxville, Tn
Posts: 204
Thinking about upgrading to long arms

So while I've been upgrading everything that breaks or is worn out on my zj here recently I've noticed the need for new rear CA's. Getting alot of noise and axle wrap.I'm currently running a 4" or 4.5" lift (bought it lifted). And instead of buying new short arms I was thinking of going ahead and swapping to long arms. Can I just buy the long arm hardware instead of the full kit and use my current springs, end links, track bar, etc?

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Unread 10-31-2013, 11:04 AM   #2
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1995 ZJ 
Join Date: Dec 2012
Location: Wisconsin Dells, Wisconsin
Posts: 468
IRO, Clayton, and I think Rubicon Express all sell long arm upgrade kits. Might be others too.
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Unread 10-31-2013, 11:11 AM   #3
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1998 ZJ 
Join Date: Dec 2007
Posts: 8,135
Out of those 3, Clayton is the only real upgrade.

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Unread 11-01-2013, 08:34 AM   #4
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1998 ZJ 
Join Date: Mar 2006
Location: Helsinki, Finland - on the European side of the Atlantic
Posts: 5,443
Clayton is the best of those, but it does rob quite a bit of clearance from under the uniframe rails. Too bad they don't make a true front 3-link + panhard kit for the ZJs, like they do for the XJs. Way better than the so-called "3-link" that is actually radius arms with only a single upper on one arm. The rear lowers could use quite a bit more triangulation on the Clayton kit for added side stability and better axle path, but it anyways is a a 4- link without a trackbar (which is a good thing) and as that a much better system than ie. IRO or RE.

Rubicon express is a radius arm front and 4-link + panhard bar rear long arm kit. So is the IRO kit, but IROs single front upper arm thingy is kind of a joke. I would not trust it with a single 10mm/ 3/8" bolt with the weird adjustment system. Rear setup is pretty much the same as RE (4-link + panhard). Installation is a bit more straightforward on the IRO kit.

If I were to choose from those, I'd get the Clayton kit. Even though it does rob some belly clearance, it's the best of those three. With some DIY high- clearance mounts on the belly, it would be even better.
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