Driveshaft I heard a rattling noise from right underneath the stick shift?

I heard a rattling noise from right underneath the stick shift. I climbed underneath the truck and saw a bushing or ring of some sort that is covering the joint between the transmission and driveshaft had come loose and was freely moving around. It seems as though it was glued or someother type of holding material was keeping it in that place but has worn off. Is there something I can get to reattach it? Or do I have to get a new one?