Model 303 40" snowthrower attachment - question on fit
 

I have this unit for sale and a member here is asking if it will fit a Cub Cadet model lt2180 or gt2186. It was purchased in 1997 with a model 2130 Cub, and it's listed as being for 2000 Series units. Does that mean it will fit any 2xxx model? Is there a source that will list older model numbers and compatibility?
Thanks!