I had replace the fuel returns, feed line from the bottom of the tank a couple weeks ago, yesterday when I was changing brake lines and rotors, I notice there was a leak by the fuel feed line, I remove the big rubber gourment, but find the strainer and fuel feed line feeding are dry. Do I have a crack in my tank? Is there something else I shall look for? Is it hard to change the tank? And where can I get a replacement tank? Thanks a lot...