i don't know if this is the right section, but today i noticed a leak in my fuel filler hose. i think it's underneath the guard that covers the lower loop part before it goes up to the rubber connector piece and so on.......

i think what happened is just some mud and stuff just got trapped up in there. has anyone ever replaced this? it doesn't look all that difficult, and was also wondering where are good places to search? parts store or junk yard?