Think I need a new clutch

Get it apart first for inspection.
I have been using factory 340 discs (P4529136) for many years behind my HO360.The diaphragm is circa 2004. It probably has 100,000 mile or so on it. During that time,I have replaced several discs.These discs are smooth engaging,easy on the flywheel and pressure plate,and take quite a bit of street abuse. Eventually mine either spit out a spring (or two), tear off chunks of linings, or crack the hub,but they last a few summers;more, now that I'm getting older.lol