You're asking about the lift bar and "lift bar attaching plate assy." for a 3 point hitch?
If you've never seen one or put one on before they can/will make you scratch you head.
Go here:
http://www.partstree.com/parts/?lc=c...&dn=0098100027
The plate bolts to the flat part at the bottom of the handle, the bolts actually go through the slot that the lift handle rod slides in. The plate goes between the bottom of the handle and the right side frame rail. Once mounted, the bolts will be forward of the pin that goes through the lift bar.
It may be necessary to put the lift bar on the plate before bolting the plate in place, as there may not be enough room to get the lift bar between the frame rail and the end of the pin.
NOW, that should be about as clear as mud!
Good luck, they can be a pain to put in.