I have a water pump that came off what I thought was a 261 that was in a ad 1 1/2 ton truck that is shorter that the 235 pumps that come on the car and pickup motors. I have seen this pump on a couple of ad trucks running around and it looks like it works good. I wish I knew of this pump when I stuck a 235 in my 37,I dont like the small pulley on the pump I have on it now. I am going to find someone to rebuild the pump off of the 261 and put on my 37
