What keeps the control arms from twisting and bending? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-08-2014, 07:10 PM
Thread Starter
Burddog's Avatar
Join Date: Jul 2014
Location: Selinsgrove, Pa
Posts: 541
What keeps the control arms from twisting and bending?

I detached the front sway bar for the 1st time and parked it on a small bank to look at the amount of flex in the front. My question is what keeps the control arms from twisting? They are stock. So they are fixed to the axle and fixed to the frame. It looks like there is a lot of force on these brackets and arms. The bushings do not look like they are meant to twist like a heim-end. As the axle moves up and down this bracket on the axle will change angle with the axle, but the other end is attached to the frame, which is not flexing. So do I need different control arms to run with the sway bar detached?

Burddog is offline   Quote
Old 10-08-2014, 07:12 PM   #2
harryhood's Avatar
Join Date: Jul 2013
Posts: 388
There is some flex in the factory bushings. I've always assumed that the stock arms are designed to twist a certain amount.

Of course more expensive aftermarket control arms will allow for better articulation.

harryhood is offline   Quote
Old 10-08-2014, 07:20 PM   #3
Mostly old school..!

5-Year WF Supporting Member
Water Dog's Avatar
Join Date: Mar 2011
Location: Now searching for rocks in Sumner, TX
Posts: 12,149
The stock control arms are designed the way they are so they will flex as the suspension flexes within the stock parameters. They are not really made to flex to extremes as you can see by the pictures below. The only other control arms worth using are arms with Johnny joints in the ends (Like Savvy Currie) or the Duroflex joints (Metalcloak). Most of the control arms that come with inexpensive lifts use a poly bushing in the end joints and because they use a rigid tube, they put all that force on the control arm mount trying to twist the end out of it. All that does is break mounts.
Attached Thumbnails
Click image for larger version

Name:	352.jpg
Views:	42
Size:	230.9 KB
ID:	1548418  
Water Dog is offline   Quote
Sponsored Links
Old 10-08-2014, 07:22 PM   #4
Nate the Co2 guy Commercial Member
Instantairsupply's Avatar
Join Date: Sep 2014
Location: Fresno CA
Posts: 372
What's kind of cool about the factory links is that they are designed to twist, Basically a torsion set up. Stock arms probably out flex, and put less stress on your control arm brackets than a lot of double poly, or double clevite solid arms. Keep in mind, when we're talking about articulation, if you're able to fully extend your shock, and the other side is on the bump stop, that's all you get. It's rarely the control arms, stock or otherwise that are the limiting factor in regards to articulation.
High Quality Co2 On Board Air Systems!!!

Instantairsupply is offline   Quote
Old 10-08-2014, 07:35 PM
Thread Starter
Burddog's Avatar
Join Date: Jul 2014
Location: Selinsgrove, Pa
Posts: 541
Thanks I figured it was designed to twist, but wasn't sure Jeep calculated into the equation that the first thing a jeep owner would do is disconnect the sway bar.
Burddog is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -5. The time now is 04:23 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.