Well, I mowed off 4 acres of scotch broom this summer, working the clutch often. I tangled with numerous root balls and dirt hills because the area is rough...never broke free.Bonaro, I would think if you could use the PTO for an extended period of time would have more effect on freeing the clutch rather then just giving it a chance on a stump. With a tiller you could use a stick to hold the clutch down and work it for an hour or so. Anything beats having to split it, if you can avoid it.
I could try the tiller...hold the clutch all the way down and just let it eat dirt for a while
I agree, splitting the tractor is my last resort