I bought a core transmission from a friend of mine for the MF10 diesel. it was donated by a John Deere 110, and yes they are the same once the pulleys are off. I decided to check out the detents before I did anything with it. While I was manhandling it before teardown some water ran out, so I took it outside and dumped it. Upon teardown it became apparent this may be a parts unit. The ends of a shaft or 2 rusted into the bearings enough to ruin the bearings and rough up the shafts some. The rest of the parts would clean up in the wire wheel.
If someone had some hard parts laying around I'd probably just buy a few bearings and put it back together with new axles seals, limited slip, and new detents.