Viberatory plate or roller? I'm thinking about one for our little Deere 35ZTS, also a much larger device for a Cat 320.
Some info here: and from about post 13 onwards here: and a bit of discussion here:
I have a vib plate i am looking to get rid of. I believe its 28" wide and will fit a 160 or bigger machine. 80mm pins with 12" b/w the ears Its in great shape