C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How long do the stock Bilsteins last??

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Old Feb 7, 2007 | 08:26 PM
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Default How long do the stock Bilsteins last??

How long do the stock Bilsteins last?? I have a 94 C4 with 54k..and they
feel bouncy...any suggestion on a good replacement?? thanks
hk
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Old Feb 7, 2007 | 08:34 PM
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I've heard that getting 50k out of any shock is good - mine have just over 50k, so I bought a new set.

I ordered Bilstein Sports, as they are valved like Z51 shocks, and should provide a bit more control.

Steven
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Old Feb 7, 2007 | 08:40 PM
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Originally Posted by hkphoto
How long do the stock Bilsteins last?? I have a 94 C4 with 54k..and they
feel bouncy...any suggestion on a good replacement?? thanks
hk
Bilstein
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Old Feb 7, 2007 | 09:38 PM
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Replace with Bilstein, pricy but you will be happy.
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Old Feb 7, 2007 | 10:06 PM
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Mine have 80K miles and 22 years on them. I have no idea what condition they're in, but the car seems to handle great.

I also drove it once without shocks, that was exciting.


When a gas charged shock dies, does it get stiffer? (gas leaked out?)
...or does it get softer? (fluid leaking out?)
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Old Feb 7, 2007 | 10:21 PM
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Mostly you lose damping ability. You start "floating".
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Old Feb 7, 2007 | 10:29 PM
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Originally Posted by BADDUCK
Mostly you lose damping ability. You start "floating".
mine must be on there way
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Old Feb 7, 2007 | 10:31 PM
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I have 75-80k on a set of Bilstein's and it's time to replace. Will most likely replace with another set of Bilstein's.
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Old Feb 8, 2007 | 12:50 AM
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FWIW, I decided to replace mine recently. ~53K miles and 11 years. Right rear showed some extra leaking and my daily driver Altima floats less than the Vette.

A quick search finds rocco16's on-point summary of the better options, Bilstein (my choice), and otherwise:

Originally Posted by rocco16
If you want a low-cost shock on your C4, go KYB.
If you want a good shock on your C4, go Bilstein.
If you want the best looking shock on your C4, go Edelbrock.
If you want the best performance shock on your C4, go Koni.
If you want a great looking, great performing shock, go QA-1.

I wouldn't consider anything else.

Larry
code5coupe
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Old Feb 8, 2007 | 01:17 AM
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The way I tested my shocks was to follow a friend through the twisties in his 06 z06. If the shocks weren't bad going into the first corner .......they were bad by the last one.
I got a good deal on some KYB's, so I decided to try them. They're ok. But I swear my care sits higher than before.
I will be going back to bilsteins one of these days.
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Old Feb 8, 2007 | 06:17 AM
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Default Shock Question

Originally Posted by hkphoto
How long do the stock Bilsteins last?? I have a 94 C4 with 54k..and they
feel bouncy...any suggestion on a good replacement?? thanks
hk
There are some very good post about shocks in this forum , if you run a search I think you will find Bilstein's are the wat to go.

Desert
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Old Feb 8, 2007 | 07:21 AM
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I replaced my Bilsteins on Ruby at 99,000 miles (base suspension). My mechanic said they still felt like they were working. (Actually, I don't know if they were origional). I replaced with TPIS and have used it on track days. The TPIS shocks seemed to function very well (but also have Z07 sway bar and poly bushings.)
A Bilstein rep at MAM Funfest once told me the Bilsteins would last over 100,000 miles.
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Old Feb 8, 2007 | 07:44 AM
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I have 135,000 on mine, been thinking about replacement. Car rides just fine though.
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Old Feb 8, 2007 | 09:55 AM
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Replaced mine at 55,000 miles. Made the mistake with buying the cheap KYB's. I'll be going back to Bilsteins soon.
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Old Feb 8, 2007 | 10:01 AM
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122k on mine and they don't seem to be a problem. They have been on my mind recently though. Damn the FX3 shocks are expensive.
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Old Feb 8, 2007 | 04:29 PM
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Is there any way to tell how old the Bilsteins are- like a date code? Mine (86L) seem fine with ~100k, but that's a long time and a long way if they are original.
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Old Feb 8, 2007 | 06:29 PM
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Rob,
You can do a bounce test on each corner of the car. Bounce it down as hard as you can. It should come back up and immediatly settle. If it bounces twice when you let go it needs shocks. Also if it floats twice or more when going over highway dips at high speed they are getting weak.
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Old Feb 8, 2007 | 08:52 PM
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Originally Posted by hkphoto
How long do the stock Bilsteins last?? I have a 94 C4 with 54k..and they
feel bouncy...any suggestion on a good replacement?? thanks
hk
Noticeable deterioration by 30-40k. Totally shot by 60-70k.
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Old Feb 8, 2007 | 08:59 PM
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Originally Posted by Vis Croceus
Noticeable deterioration by 30-40k. Totally shot by 60-70k.
that's interesting. i've got the original bilstein FX3's, i'm at 78,000.....and they're solid & very tight. zero bounce, neither by hand nor in driving.

how do you explain your statement?
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Old Feb 9, 2007 | 03:35 PM
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Interesting post. Lotta variability.

My original rear Bilstein FX3 shocks were replaced at 95K but the fronts are still OK (mechanic and track day inspection verified). I'm up to 102K now and they still seem fine, but it would not surprise me if I needed to replace them within the next year.
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