This jack kit fits most Ferris isx series mowers with 52" or 60" or 61" mowers.. 

This fits all isx2200 

This fits isx3300 with 60" deck

This  fits isx3300 with 61" deck

This WILL NOT FIT ISX3300 with 72" deck

If you have a Ferris ISX800 with the flat front plate it is a different kit..