Control Arms and Crumble Zones
12-19-2015, 01:55 PM
#1
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Control Arms and Crumble Zones
Alright, so I went to my local 4x4 shop and was picking the owners brains about a couple of things. He stated that putting new control arms on my JKU will affect my crumble zones and make the Jeep less safe. Is this true?
12-19-2015, 02:20 PM
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12-19-2015, 07:31 PM
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JK Super Freak
Highly unlikely. in the event of a colision even if the new arms are stronger the mounting points and the bolts that secure them are not. They will sheer off the bolts or break loose the mounting points on the frame. The arms are made tough from the factory. They have to stand up to people draging them over large rocks and all kinds of other things they will see off road so building in a weak point / crunple zone would be a terrible ideal.
12-21-2015, 05:21 AM
#6
He's unnecessrily worried about liability and probably not qualified to install and set up a JK lift that adds adjustable arms. Find another shop.
12-21-2015, 09:12 AM
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Believe it or not the factory lower control arms do crumple. I had a front end collision with a shorty bumper on and all the force was taken on the front PS tire.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
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12-21-2015, 06:56 PM
#8
JK Super Freak
Believe it or not the factory lower control arms do crumple. I had a front end collision with a shorty bumper on and all the force was taken on the front PS tire.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
12-22-2015, 07:20 AM
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Believe it or not the factory lower control arms do crumple. I had a front end collision with a shorty bumper on and all the force was taken on the front PS tire.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
Factory control arm bent and control arm bracket on diff housing smashed, no bolts sheared or snapped, the frame side mount was untouched. A stronger control arm would have destroyed the frame side mount as well.
12-22-2015, 02:38 PM
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My only concern would be ... If I had stronger control arms, and took that hit, the frame side bracket would have been destroyed, now you have frame damage and then likely the Jeep would have been written off.
Having the accident was not cool. Having Jeep written off would have been devastating ..
Having the accident was not cool. Having Jeep written off would have been devastating ..