Hey 54;
Don't sweat it. I put one on my '49 GMC and like Wally said,it works great. As mentioned, take the hose from your manifold to one side of the DA pump. You can tell which side it should be on by hand actuating the pump lever. The side that sucks is the inlet and the side that blows is the outlet. Take the outlet to the wiper motor. If you get them reversed, you'll be able to tell.
