Leaking fuel lines? 1996 silverado 5.7 liter CSFI fuel systm

[Packfan12]

I cant seem to get fuel line connection at the fuel body to stop leaking? Is there a trick with the o- rings? please help?

[1997chevydriver]

Did you put the orings on the lines first or leave them in the fuel body?

That or they may just need to be replaced