My 1958 641 didn't have power steering so i decided to purchase a used one and put it on. All of the pieces arrived and got them on my tractor. When I started the tractor the line coming from the pump going to the gear box blew out a piece of rubber tubing. The old tubing had been patched with this rubber tubing. The pump works great because it spewed out fluid everywhere. My though was the lines were crossed going into the gearbox. Could this be the problem or should I look somewhere else?