I have a AYP tractor with the above referenced transaxle in it. I moved the tractor a few days ago and cut it off. Walking away I heard a 'ping' that sounded like something hit a piece of tin. Later when I tried to move the tractor the hydrostatic drive appears locked in both forward and reverse possible...at least when I move the level either for forward or reverse there is a grinding. If I depress the clutch/brake I can move it into a gear and if I begin to release the clutch it drags the engine down. The tractor will not roll without skipping one wheel backward as the other moves forward even with the lockout in the position to push it.
Any help identifying the problem would be appreciated. Thanks.