Nothing out of the ordinary...
I guess it would depend on the hours on the tractor & what type of work it has been doing...
The hydraulic clutches are usually good for a Long time, the dry main clutch is generally Never used... but if it has been used it & the pilot bearing can show problems before 1000 hours.
The pto has a wet clutch pack & is generally not a problem it has a brake system that can get excessive wear if heavy pto loads are not idled down before disengaging the pto...
It is a well engineered tractor with no real weak points...KennyV