depending on the geared transaxle your putting in you might have pulley problems(not the right height), how wide the transaxle bolt holes are, etc. most of the stuff is common sense, your sifter will have to be made and located somewhere, Keep your Hydrostatic transaxle and look around for a geared one(if you don't already have one) and compare where stuff will bolt into place, etc. and try to get one to fit, most of them will bolt right into place because alot of frames are used with alot of different transaxles.