Never a better time to replace it than when you have the motor out. It is kinda of one of those "Since i am already there things".
Is the fiber disc nice and thick?
is the pressure plate scored, glazed or show signs of over heating?
how about the flywheel?
Do you know how many miles are on it?
How does the pilot bushing look?
what about the throw out bearing?
ez to renew now.....
m