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Old October 26th, 2012, 03:40 PM   #1
big86inthestixx
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Default True 3 link, or radius arms?

Ok...ok..i searched couldn't find what i needed.
What are the advantages of 3link over radius arms, if any.

Building a rig, thinking radius arms for simplicity, but is 3 link better?
Thanks for the help..

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Old October 26th, 2012, 03:41 PM   #2
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radius arms bind up. they are easier to build and set up but bind up pretty easy.
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Old October 26th, 2012, 03:44 PM   #3
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Three links will certainly allow more flex. We have had success with radius arms for a weekend wheeler/dd. You can certainly tell the difference between the two when flex comes into play. The radius arm set up is much simpler, but a 3 link is surprisingly easy to build.
What are you planning on using this rig for?
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Old October 26th, 2012, 04:13 PM   #4
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3 link
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Old October 26th, 2012, 04:33 PM   #5
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DD, and weekend Wheeler.
Both are pretty simple to set up, say i had a Yj with 12" travel coil overs front n rear. 3 link is a smoother traveling, less binding set up? Most likely stronger than radius arms? Or would radius arms be stronger?

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Old October 26th, 2012, 05:27 PM   #6
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They would both be strong if built right, that shouldn't be an issue. Radius arms will work and are easy. We have built a couple 3 links for trail rigs, haven't had them on the street. I would wonder how that would do at highway speed, but it should be fine if built right. I'd go to 3 link if youre comfortable with that. You'll certainly get more travel out of that set up.
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Old October 26th, 2012, 05:33 PM   #7
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I have a 3 link in the front of my xj, I have had it on the highway and it does just fine. I would not dd it, but I have driven it over 100 miles in a day all on paved roads without an issue.
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Old October 26th, 2012, 05:39 PM   #8
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Quote:
Originally Posted by curbdog17 View Post
I have a 3 link in the front of my xj, I have had it on the highway and it does just fine. I would not dd it, but I have driven it over 100 miles in a day all on paved roads without an issue.
That was my only concern knowing it was his dd. The radius arms will probably be a better dd option in that regard. To each their own on that, more of a personal preference it seems.
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Old October 26th, 2012, 05:47 PM   #9
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We used to DD our XJ with a 3-link front. Set up correctly the 3-link will out perform a radius arm setup on or off the road. The main issue with radius arms, or a "Y" link setup, is the unloading of the suspension during steep climbs, and acceleration. Also you will notice the front to dive under hard braking. A 3-link with proper separation between the links won't do this.


There is also the option of a 4 link. If your worried about the strength of a 3-link, you can always add another upper link on the other side. This will bind more than a 3-link, but less than a radius arm. This is assuming your not running a triangulated 4-link.

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Old October 26th, 2012, 05:53 PM   #10
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Quote:
Originally Posted by RDK_YJ88 View Post
There is also the option of a 4 link. If your worried about the strength of a 3-link, you can always add another upper link on the other side. This will bind more than a 3-link, but less than a radius arm. This is assuming your not running a triangulated 4-link.
Thats a great point there. If type comfortable with a 3 link I'd recommend that first, if not a 4 link as stated above to avoid excessive binding. The 4 link wouldn't be difficult to set up either.
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