Originally Posted by Raucky2000
I've heard from a number of guys that they wait until the shock leaks before they overhaul them, since KW is such good stuff. Unless they have other problems like bent shafts etc. I don't have KW, I have TCK DA and I was told the same thing from TC about his shocks too. I know this doesn't exactly answer your question, but hope it helps some.
Dampers can wear internally and lose their damping capability as well.