Fuel leak after replacing fuel pump

i think it would either the clamp on your fuel line is loose or the gasket on top of the tank on my sierra i would have to drop the tank to fix it

Thanks for your replies guys it ended up being the fuel line connector...didn't even have to drop the tank luckily.. 6 bucks and the leak is gone the o ring inside the connector was damaged

Hey guys i have a 98 two door tahoe i had install a new fuel fitter in a new fuel pump started up ride a way so the next day im at work in went on my lunch break went to store in came back to start my truck in it wouldnt start so i pop the hood in i start to smell gas so i look over in seen gas coming out where gas tank is at as i look at it a little more i can see the stangs from the gas coming out the top what could it be