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Adjustable Control Arms

Old 06-30-2016, 10:30 AM
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Default Adjustable Control Arms

I am going to be installing both upper and lower adjustable control arms this weekend. I was just wondering if there was anything I should know before this endeavor. I have already started spraying PB blaster on the bolts to help loosen them up.

Can I do one arm at a time to reduce the chance of moving the front axle or do I need to do both uppers and then both lowers.

I seem not to be able to find the guide on the length of each arm needs to be.
Old 06-30-2016, 10:41 AM
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3 seconds on Google.. Just do the lowers first then the uppers.
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Old 06-30-2016, 12:05 PM
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Originally Posted by JPXJMOAB
3 seconds on Google.. Just do the lowers first then the uppers.
At what Caster are those numbers? I'd imaging the lengths would be different depending on the caster desired?

I'd vote for one side at a time. Having the other side connected ensures caster on at least that side remains unchanged. Just dont man-handle the disconnected side too much when putting new CA's on.

I've seen a caster difference of over 2 degrees between sides on some DIY projects.

Best bet is to find a good coupon for an alignment shop.
Then, change your CA's and get everything solid, trackbar etc ...
then take it and get it aligned, or do a DIY alignment.

Anywho, make sure to have fun while doing it. That's what its all about.
Old 06-30-2016, 12:43 PM
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Originally Posted by Reble
At what Caster are those numbers? I'd imaging the lengths would be different depending on the caster desired?

I'd vote for one side at a time. Having the other side connected ensures caster on at least that side remains unchanged. Just dont man-handle the disconnected side too much when putting new CA's on.

I've seen a caster difference of over 2 degrees between sides on some DIY projects.

Best bet is to find a good coupon for an alignment shop.
Then, change your CA's and get everything solid, trackbar etc ...
then take it and get it aligned, or do a DIY alignment.

Anywho, make sure to have fun while doing it. That's what its all about.
Those numbers are to get caster back to factory spec. 99% of alignment shops won't touch the adjustable control arms of they need adjusted. Adjust to the recommended length then bring it to get an alignment.
Old 06-30-2016, 03:15 PM
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Originally Posted by JPXJMOAB
Those numbers are to get caster back to factory spec. 99% of alignment shops won't touch the adjustable control arms of they need adjusted. Adjust to the recommended length then bring it to get an alignment.
I guess I got lucky with my guys at the alignment shop, they are Jeep fanatics.
They converted my fixed length control arm on the pass-side by cutting the end off and welding a adjuster on that Iron Rock sent them.

Now I can take my hands off the wheel and never leave my lane.

I guess it all depends on what you are willing to pay for, lol.
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