Bullnose owners! I need help finding a noise problem. My f100 long bed has this horrible clunking/thud/thumping nose generating from around the bed area. Its passenger side for sure and I am just confused on where it’s coming from, Is it a bushing? Plate? what could it be???

 

Many things can do that. Check for a broken spring, shackle, bad shock or a worn stabilizer link would be the more common areas for concern.

 

I have seen reports when people fluid film the underside to avoid spraying the leaf springs. Apparently it can lead to dust/dirt collection between them and creaking noises. Did the place/person that coated yours spray the leaf springs?

edit: wrong thread, sorry.