Stuck shafts, obtain a can of PB Blaster and spray and wait. Spray and wait. Also do not beat - bang - destroy. Which end are you having a problem with, deck or PTO. Some shafts have a slip collar that has to be pulled back to allow removal of the shaft. Some have a pin that you have to depress and hold down to slide the shaft off. Will the slip collar or pin move or depress to allow for shaft removal? If on the PTO end, removal of the deck will allow you more room to obtain leverage to pull on the shaft.