Hello, So I have a small fuel leak at what appears to be at the top of the tank. I dropped the tank and pulled the sender unit. Looked for cracks at the sender unit pipes. Looked good. No rust. Pulled the sender unit out. Replaced the strainer and sender O ring since I was in there. Replaced the fuel line and QD connectors from the pump output to the fuel filter. Started the car up and while underneath while running I can see no leaks from any of the sender pipe connections. But after a drive there is a small amount of fuel residue on the sides of the tank and smell. Lines are dry with no leaks. So I am back to square one after a bunch of work. Any ideas? Hairline crack in the sender pipes at the very top I cant see ? Or cracked tank? At a loss. Any help is welcome. Thank you much...Uvaldi.