If you are pulling the lower trays, there is an inspection area at the bottom of the trans bell housing. If you still have the plastic cover, just pull it off. Once it is out of the way, you can see the bottom of the flywheel and clutch cover.
As far as driving the car, it will require more throttle; ie, higher RPM, 2-3K RPM, to start moving from a stop. Another thing is how quickly that the motor decelerates when you lift on the throttle for shifting. A light flywheel will require a little maintenance throttle when upshifting otherwise the RPMs will drop below the shift point.