They used to make the input shaft with the out put to do this, but they quit making them. The only person that makes them is Dutten Interprises in Britian some where. Search for Amphibious ccars. they use the samurai for the frame and drive train. He actually sent me the drawings to make them myself. You just have to use a sealed bearing on the out put side. He can send you a shaft for about 150.00 US.