I've had my fair share of boots go......
I think the 1st time I did a reboot as I wanted OE. Then when it happened again, it was far too along but I decided to replace the whole thing with GKN...

As of -recent, I just replaced a GKN in March, and the same one was also replaced 2 years or so earlier - GKN as well. Thank goodness for FCP except their warranty has changed a *bit* on how it works