need help finding a part!

[beanie]

ever since my cam and LT install, sometimes I hear a rattle coming from the rear. If I push the rubber piece that holds the muffler to the hangar, it goes away. Anyone know of a tighter (urethane, maybe) rubber piece I can use?

[0rion]

Something may just needed "adjusted" back there. Try to find out exactly where it's hitting and use either a small or large hammer ( depending on the amount needed) to "adjust" it.