anything you can find that you can stuff in a place where its vibrating that you cant see the peice that u stufffed there, thats what i did, ur never really goign to b able to stop ALL the rattling so do what ya can and get used to the rest...oh yea, and i have the middle grade mounts..theres 3 different stiffnesses...theres a fair amount of vibrating for the black mounts idk about the others...