Is thier such thing as a normal spring life for an aftermarket spring? Such as an Eibach or H&R springs.??20K-40K-70K miles?? I know it's real general, but any info would be appreciated. Which last longer than others?
Thanks,

 

you shouldnt ever have to worry about something like that unless you have some crappy shocks and your springs are actually working harder than they have to...just get some quality shocks and stick with a reputable spring manufacturer like eibach, h&r or neuspeed