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‘01 Sonoma Lower Control Arm


SouprGrrl

Question

Can anyone tell me what this thing on the lower control arm is? I have one where the passenger side thing has gotten broken off but it doesn’t seem to serve a purpose so I don’t know if I should be concerned. Looking at brand new replacements I see that none of them have this “cup.”

Thanks for any help.

06CC4967-8095-4CFC-83C5-3D9F452B72C7.png

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Looks to be a rubber bump stop that dried up and busted off. Usually they're on the frame - that's an odd design there.

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Keeps the vehicle from slamming the bottom of shock absorber travel, which can be jarring - the bump stop is just a small cushion for those real big ones. Not absolutely needed -  just nice to have. If you live anywhere south of DE & west of the Mississippi, you'll probably never use it.

 

They get used ALOT up here in MA - our roads are rivaling 3rd-world status ... :lol:

 

Here's a few pics of one on a Silverado - you can see what happens to them:

 

 

Edited by Jsdirt
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Okay, I get it! We had a ball joint issue and it must have bottomed out to break the cup off of ours. Our roads aren't third world but I am in South Carolina, some of the back roads are pretty nonexistent. I guess I'm going to get that used arm with the intact cup and find some new bump stops to put in there.

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