98 k1500 fuel pump problems

my fuel pump went out and im puttin in a new one got the tank dropped and everything just cant get the lines off the only fuel pump they have like a 4 pronged plastic clip holdin it on and im not sure if i can get a new one so i dont wanna break it if anyone knows an easy way to get this off let me know

thanks
Red

There is a tool for this purpose ,they are cheap and available at any auto parts store.