when filli up gas tank it spills over when turning left what can I do to fix on 1998 Ford Mustang

I stop when it clicks to full you can smell the gas even when I dont overfill

Asked by for the 1998 Ford Mustang
I THINK where filler neck goes into the tank there is a rubber gromet that seals tube to tank, check for leak there.
Has any work been done around gas tank area?