Agree with jbe24jg. Also, have you tried removing the black tape to see what's under it, maybe there's a keyway, unlikely though, but it's worth a try.
Jbe24jg yea that would be the best thing to do... but I can't seem to find one for a good price that can guarantee it'll run.. so for the price of a brand new13hp predator(287$ shipped) I couldn't help it..
John, keyed as in a slot through the metal, I believe it does.. why?
Does it have a keyway on the other side of the bearing hanger, I know it sounds silly, but there's always a possibility. I would recommend to remove the tape just to make sure all the axle components are fine on the future. And the slot in the metal allows you to put another sprocket and a key thing of the word right now) on the other side of the axle.
You could remove the third cassette bearing, because you only need 2, then put the sprocket in that keyway, here is a picture for reference. Also, remove the seat mount that attaches to the "cassette holder", it's not necessary to have it
You see how The third "axle mount"/cassette is removed and the sprocket is moved to the other side of the axle? That is what you could do here.