just curious but... how do you know that it is vibrating a lot? If you are running it a very low idle or 4-stroking it (which I know, guys, will kill the engine), it may vibrate a lot. I would suggest the best solution is always just to bring it to the local field and let someone help you out with it. The spinner is not a problem unless you are using the wrong bushing. The prop is not a problem unless there is something very wrong with the balance say an electronic tag or something.