Tractor Repair: Tractor Clutch, clutch disk, crankshaft seal

Question
I was pushing snow with my International 574, starting backing up and pushed in the clutch to go forward and it would not stop.  I turned off the key to stop. I can start it in neutral but when trying to put it in gear the clutch does not work.  I have been told the clutch may be froze but it does not appear to be that because of the warmer temperatures.  Do I need to have the clutched replace and if so how expensive is this type of job?  Thanks for your help.

Answer
  The clutch is not frozen because of the warmer temps, but also because it happened while you were using it and not after it sat unused for awhile.  Either the clutch release (throw-out)bearing has siezed up and worn off the fingers of the pressure plate, the pilot bearing has siezed, or the pressure plate or clutch disk are broken.  First check that the pedal is adjusted so that it is high enough from the floorboard to be able to release the clutch when pushed.  If it is OK, then the tractor will have to be split and the repairs made.  There is no way for me to estimate what the job will cost.  There are too many factors, where the work is done and their labor rate, where the parts are obtained, what is actually wrong and what other work will be needed, if it has a loader on it, etc.  If the clutch is replaced, the flywheel should be resurfaced.  It is also a good time to replace the rear crankshaft seal and input shaft seal.  These are all things that will add to the cost but will make a better repair.  The good thing is that these are a fairly easy tractor to split so that will reduce the labor somewhat.