Tuff wheel adapter?

Never heard of Rivs toy box, Ill have to do some research on it. I have manual steering in mine yes, Im not sure what the ratio is, (Im thinking its the quicker ratio though) and no problems with it. I did replace the factory steering wheel with a Grant Tuff, which I like WAY better, the factory wheel is just too big, and the Grant (15" I believe it is) is a happy medium with the manual steering.

So I went and looked up Rivs and Im not sure what it is, is it just some guy with some cars, or an actual business? Cause not all that they show are for sale.