Check this out, click on the boxes near top of page ( engine, transmission, photos etc. ) and the black bars above each component, gives further info, then the first thing I would do is check parts availability & cost, you may get in over your head in that aspect .... Good luck .... Boo
http://www.tractordata.com/lawn-tractors/000/2/4/240-cub-cadet-127.html