Gleaner K chaff spreder

I have a chaff chopper I guess but it's never been put on because I'd like to put new knives on and have it balanced. But before I go that route I've seen some that are like two disks with tire like strips that spin. That seems like a better route. Does anyone know where I'd be able to get one or do you know a company that can rebuild the chopper?

Gleaner K chaff spreder