Lisa, here is a drawing of the required parts. And yes, this is required before you can use the sleeve hitch adapter.
Here are the part numbers but I don't think any of these parts are available new.
1) IH-530502-R1, Shaft, Lift Lever
2) IH-384655-R1, Lever, Lift
3) IH-384679-R11, Plate Assy, Lift Bar Attaching
4) IH-384677-R1, Bar, Lift
5) 711-3073, Spacer, Lift Bar
6) 703-0400, Link, Lower Hitch
7) 703-0401, Drawbar, Fixed (This is a standard part that come with the tractor)
8) IH-529176-R1, Bracket, Lift Lever Mounting