Theres a litel black nipple do-dad on the pass side of the axle. My exhust was stuck between it and the UCA so I yanked on teh exhust and it flew off when i picked it up I noticed theres a spring in there I poped it back on but now it bounces cause of the spring. Does any boduy know what it is, what it does, Did i hurt anything poping it off, and will it hurt anything with it bouncing?