3320 clutch

This is the same 3320 listed below having a problem with a frozen clutch and not starting. I got it started and now to the clutch problem.I've tried driving it around and hitting the brakes and chaining it to a tree. Both have worked for me in the past but not this time. Do you have any suggestions before I split the tractor? Any help will be appreciated.

I am presently having a problem with a 5211 with just the oposite problem, won't move while engaged. But, I did have your problem last year, won't disengage. I drove mine around the ranch for half an hour, pressing the brakes and jerking it, finally, really pressed hard on the brakes and jerked and it came free. Feels like your going to twist the tractor into a cork screw, but it worked. Good luck. Now to find someone who can help me with my problem.