I'm putting everything back together and I'm wondering about exactly where the tank goes. I have the original hangers, properly fastened to the floor and frame. Everything looks good but I'm having trouble getting the filler neck to connect to the tank. My rubber connector hose is 3" long. Is that long enough? It's the same one that was on it. The angle of the one filler neck is off from the other part. How far out from the outside does the filler neck protrude? I am thinking 3".