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Old Jul 14, 2017 | 02:30 PM
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Default Bilstein

I got a 99 SS with the SLP sport lsuspension level 2 (Bilstein) with progressive rate springs the car sits pretty low and lately when I hit a bump in the road the car seems to "bump" instead of a smooth motion . My question is do you think it's time to replace the suspension? The car is 18 yrs old just wanted some opinions the shocks are not leaking and the car still handles phenomenally
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Old Jul 14, 2017 | 02:46 PM
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How many miles?
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Old Jul 14, 2017 | 03:16 PM
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83k
Originally Posted by HCI2000SS
How many miles?
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Old Jul 14, 2017 | 03:17 PM
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Default Bilstein

Car has 83 k original
Originally Posted by HCI2000SS
How many miles?
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Old Jul 14, 2017 | 03:26 PM
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With those lowering springs they may be giving out with that many miles. Don't they come with a lifetime warranty?
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Old Jul 14, 2017 | 04:47 PM
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That was my question and I can't find anything anywhere about the warranty
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Old Jul 14, 2017 | 09:31 PM
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My opinion the springs front or rear can lose strength, If u search on my posts in suspension section few years ago I replaced my rear slp springs because the rear sat too low because those springs defintely sagged. I have a 2002 ss with level 1 bilstein pkg.

I also had my right front Bilstein shock bleed out at 10k miles around 2004, was interesting because by hand u could bounce that corner of car by hand and bottom it out against bump stop. But it rode acceptable except for the noise and clunking at the right front wheel, didn't really have bouncing happening I suspect because of big front sway bar.

Only way I think you can diagnose your springs is measure them with a tester/press and force gauge to find if each inch of compression corresponds with their advertised rating.
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Old Jul 14, 2017 | 11:51 PM
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I would say yes time to replace those 18 yr old shocks and springs. It dont have to have high miles for things like that to wear out sitting 18 yrs will do it
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Old Jul 15, 2017 | 12:38 AM
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trying to decide which way to go ? brand any suggestions
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Old Jul 15, 2017 | 07:31 AM
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Have you looked at the Koni STR.T's?
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Old Jul 15, 2017 | 09:17 AM
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I love my koni sports. It all depends what ur looking for. Konis arent cheap its alot to shell out for a shock
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Old Jul 15, 2017 | 09:34 AM
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For both front and rear I got my STR.T's for right around $330
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