which lower unit will work for my suzuki

[PaulinFL]

I have a 99 suzuki df-60 06001f-971179 going by boats.net it is a df60TL. Im trying to find out which lower units will work on my motor. When I look at the gear case at boats.net there is a gear case (98-00) 55110-99E02-0EP 60-70hp 98-2009, then there is a gear case (01-07) 55100-90803-0EP 60hp-115hp.

Is this two different gear cases?

How do I know which one I have?

Will both fit on my motor?