I got my H&R Sport springs at 30000 miles... now at around 64000. I've noticed that the springs have gradually begun sagging. Not to the point that I'm bouncing on the freeway, but I can definitely notice that my car is lower than I originally intended.

Has anyone here bought new springs because they thought their springs were getting too old? What is the average life of a set of springs? Btw, my shocks are still in good condition according to my mechanic. Not bad for 34000 miles plus!