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Old Feb 5, 2008 | 09:09 PM
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Default NTB: bumpstop

I am looking into buying performance bumpstops and was wondering where the best place to get them?? JUst installed the koni shocks & prokit and it bottoms out on the left rear on dips.. hate it, so I need to get these quickly..

Also I don't have a PHB, so is this something I'm gonna need as well??

Help me out guys
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Old Feb 6, 2008 | 02:52 PM
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Performance bumpstops might just make your car ride worse. The stock z28 ones are progressive and allow a little give before the bump goes to full stop. A performance bumpstop will probably be pretty solid and thus you will feel it a lot more. Actually if you have an SS, I think you have the blunt ended bumpstops right? Try switching to stock z28 bumpstops

You can get lower ones, but you might still hit. You can remove them too, but I wouldn't ever do it. Some people have done it in road racing but they have a higher springrate to compensate for it. I would not recommend removing the bumpstops on Eibach springs. That's treading in the risk of damaging your shocks zone.

Eibach springs seem to rely on the bumpstops to do their job.
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Old Feb 7, 2008 | 10:32 PM
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nah man I don't plan to remove em... I just bought one for the left rear since it's the only side that hits..GOt it from GM and it's the yellowish pyramid look type. It's the only one the sell


Will I also need a adj. PHB???
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Old Feb 8, 2008 | 01:11 PM
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Damn, you should have bought both. If your buying online you'll have to pay for shipping a 2nd time. I just got some new bumpstops in the mail yesterday.
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Old Feb 8, 2008 | 10:24 PM
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I'll get the other later.. for now I just put one on today and so far so good. No more ugly hits in the rear so I'm ok for now.
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Old Feb 16, 2008 | 06:34 PM
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Originally Posted by DarkhorSe_SS
I'll get the other later.. for now I just put one on today and so far so good. No more ugly hits in the rear so I'm ok for now.
What is the part number for the Z28 bump stop? I have the same issue on the rear passenger side. Thanks.
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Old Feb 16, 2008 | 06:41 PM
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anytime you lower your car you need an adj. panhard
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Old Feb 16, 2008 | 07:18 PM
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Originally Posted by m6ttop
anytime you lower your car you need an adj. panhard
I have one but the rear passenger still has the same issue.
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Old Feb 16, 2008 | 10:01 PM
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Guz... sent you a pm
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Old May 13, 2008 | 12:34 PM
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Can you post GM part # for the Z28 bump stops?
Needing new ones, if they are yellowish then they are not the POS '98 OEM ones that are broken on my vehicle. Or did they update all of them?
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Old May 13, 2008 | 01:53 PM
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GM part: 10164173

I just ordered a pair.


-Mike
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