currie adjustable arms too short or bad install? - JeepForum.com
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post #1 of 169 Old 01-17-2010, 07:54 PM Thread Starter
motobob
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currie adjustable arms too short or bad install?

I was wondering if anyone has ever had an issue with the currie adjustable control arms being too short? Or can someone let me know if I screwed up. I just recently installed a sye and a cv driveshaft. After much research from this forum I decided on currie adjustable arms to adjust my pinion. I just received them yesterday and attempted to install them last night but they appear to be too short. I have a 4 inch fabtech lift. According to Currie their upper arms only need to be 13.5 inches long for a tj with 4 inches of lift and a sye and cv driveshaft. In my application they are about an inch too short. I need them to be 14.5 inches to match my axle output angle to my driveline angle. I adjusted the arms out to 14.5 inches of length but according to Curries instructions you should not have any more than 3/4 of an inch of threads showing past the jam nut. In my case I would have an 1 3/4 of an inch of thread showing. Surely I screwed up somewhere. Anyone else have any issues or any suggestions for me. Thanks

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post #2 of 169 Old 01-17-2010, 07:56 PM
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Here is a response I got from Currie tech support about this issue.

Quote:
The rule of thumb is that you must have the same lenght of at least the diameter of the threads engaged in whatever its being threaded in to, the jam nut not being included
And one more quote from Currie about the fully extended lenght

Quote:
I have in my notes that the fully extended dimensions should be 14.5 inches from center to center of the bolt holes.

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post #3 of 169 Old 01-17-2010, 08:05 PM Thread Starter
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I quess I shouldn't have re-packaged those arms then if they are going to tell me this when I call them tomorrow. Maybe they might want to spend an extra dollar on each arm and include so more metal. problem solved.
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post #4 of 169 Old 01-17-2010, 10:13 PM
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i just replaced my arm with currie arms and found the same problem on the rear uppers. iI have 4.5" springs to get the pinion angle the lenght needed to be 14" that only left 3/4" engagement in the tube. so what i did was tig weld a 3/4" x16 rht nut to the end of the tube. the nut extended the tube an additional 5/8". on the front uppers had the same problem arms are set 1/4" longer than what the insructions said have 7/8" thread engagment . ididn't extend the front tubes seem ok. i wheeled the hell out of my jeep at jonson valley on saturday no problems at all that is some really hard all rock trails. i got tired of replacing bushings on my RE short arm kit
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post #5 of 169 Old 01-18-2010, 09:06 AM Thread Starter
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I just got off the phone with Currie and they say their arms are only suppost to be 13.5" for a tj with a 4" lift, sye, and a cv driveshaft. Stock arms are 13.5". WTF My suggestion is also to take the johnny joint apart and then weld a bolt on the other side of the original one that is one inch longer. Then cut theirs off. I should have built my own. Lesson learned I guess. You would think Curries R&D would be a little better.
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post #6 of 169 Old 01-18-2010, 09:19 AM
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post #7 of 169 Old 01-18-2010, 09:29 AM
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That's about the 3rd time I've heard this. A lot of folks are moving to the Currie arms because they're a good value relatively speaking. It sounds like they need to get their act together and fix this before people get scared away.
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post #8 of 169 Old 01-18-2010, 10:22 AM
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i just measured my Currie arms (not installed yet). by their instructions, it looks like the max length you can get out is 13.5"...which makes them essentially useless. you can get to 14" but there is very little thread left in the shaft. wow thats really disappointing coming from Currie....

Rokmen's are adjustable up to 1" longer than stock according to their website - Rokmen - ROKMEN Adjustable Control Arms
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post #9 of 169 Old 01-18-2010, 10:31 AM
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Quote:
Originally Posted by Unlimited04 View Post
i just measured my Currie arms (not installed yet). by their instructions, it looks like the max length you can get out is 13.5"...which makes them essentially useless. you can get to 14" but there is very little thread left in the shaft. wow thats really disappointing coming from Currie....
Actually, for an Unlimited, I'll bet they work just fine. I actually had to shorten the rear upper arms, but I still have the stock driveshaft.

And the instructions only state the arms are pre-set for a "4" lift with a transfer case shaft kit and a CV driveshaft." They should think about stating that that is likely the max you can get away with. So, for example, if you have a 4" lift and an aftermarket transfer case skid, the Currie rear upper arms likely won't work for you. But this has been a known "problem" for years.
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post #10 of 169 Old 01-18-2010, 10:35 AM
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Great. I have BNIB Currie arms sitting here waiting to be installed that are several months old and now people are saying they won't work for my application? WTF
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post #11 of 169 Old 01-18-2010, 11:09 AM
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Do You have Your lowers too long? Maybe shorten them up a little... that will make your uppers 'longer'.

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post #12 of 169 Old 01-18-2010, 11:15 AM
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Our rear Upper CV Control arms will do 14.5" without any problems, and still have the nescessary thread engagement.

We make two verions of our Arms:
1 version is stock length + 1" of adjustablitly
The other version is 1" longer than stock + 1" of adjustablility.

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post #13 of 169 Old 01-18-2010, 12:13 PM
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Quote:
Originally Posted by baboyd View Post
Great. I have BNIB Currie arms sitting here waiting to be installed that are several months old and now people are saying they won't work for my application? WTF
How'd you figure that?

You never posted in this thread, no one told you anything.
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post #14 of 169 Old 01-18-2010, 12:19 PM
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Quote:
Originally Posted by Shakey View Post
How'd you figure that?

You never posted in this thread, no one told you anything.
Umm...I have the same setup as the OP and possibly a TT which would make the situation even worse. Just a logical conclusion.
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post #15 of 169 Old 01-18-2010, 12:53 PM
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Quote:
Originally Posted by motobob View Post
I just got off the phone with Currie and they say their arms are only suppost to be 13.5" for a tj with a 4" lift, sye, and a cv driveshaft. Stock arms are 13.5". WTF My suggestion is also to take the johnny joint apart and then weld a bolt on the other side of the original one that is one inch longer. Then cut theirs off. I should have built my own. Lesson learned I guess. You would think Curries R&D would be a little better.
Seeing as how Currie has built a ton of rigs at their shop with their arms and springs, I think their R&D is just fine.

I suspect this issue is coming about from all of us who have run the Currie stuff for years with no issue and now folks are trying to run them on lifts that are taller than 4". When Currie says their kit is 4", that means it's 4" unlike RE where depending on the day, their 4.5" kit is anywhere from 5-7" of lift.

Since Rokmen makes longer arm I'd look at going that route. They still use the JJ's and you can get them on both ends which makes for a great solution for you folks with the taller lifts.

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