If the car is not abused (road racing, flying over speed bumps, ect), how long do typical lowering springs last? And how do you know when they're worn out?

it would really take alot for a spring to wear out. why do you ask?

Well, Eibach advertises a "Million Mile" warranty on their springs (for the original owner). That ought to suggest how confident they are. It seems like the possibility of having a good-quality spring fail is rather low, even after a long life. When they do fail, it seems like the "wear out" phase is rather subtle, and it's usually a broken spring by the time it presents itself as a problem.




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AWD GS wrote:it would really take alot for a spring to wear out. why do you ask?

I have a set of B&G springs sitting in my garage. They are about 6 years old and have well over 100k miles on them. They look rough, but seemed to function fine when i removed them. I was thinking of giving them to a friend of mine, but if they're still likely usable, I may just swap them back for the sportlines I'm running now and sell the relatively new sportlines.

im sure they will be fine. coat of paint over them and they'll be good as new

yea generally springs will rust out before they wear out.


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Primer Counts as Custom Paint Right?
BTW: This is my Sig.

Springs typically lose rate due to constant motion. Factory springs are more susceptible to rate loss than aftermarket springs (since aftermarket springs are made to tighter tolerances). Most factory springs have a recommended replacement of somewhere between 80-100k miles, but thats not because they don't work, its because their rate has decreased. I can't remember ever seeing a rate wear replacement on an aftermarket set. Those B&Gs should still be just fine.

Aftermarket springs are also often stress relieved which also plays a roll in the spring life.

Your struts will go long before your springs will and is usually the cause of bad suspension ride.


-Chris