You Need to check the archives Here and at Weekend Freedom Machines It Has Been Done Before converting The Belt driven Blowers from a 318 onto a X400 series so the same could Probably be done to a 425 thru 455:thThumbsUI have a 49 snowblower on my 318. I also have a 445 with a quick hitch. I have the urge to modify the 49 to fit the 445 and the quick hitch. My question is does anyone know what is the rpm speed of the front pto of the 445 and what is the rpm speed of the shaft of the 49 with the 318 would be? Are they the same speed? If they would be the same or at least very close, I am thinking of replacing the pully with a PTO .