Newbie with ignition question

THANK YOU FOR THE SUGGESTION- THE NOISE IS DEFIANTLY TOWARD THE REAR, HOWEVER ONCE DRIVEN,I WILL BE ABLE TO DETERMINE THE SOURCE. I HAVE A 1992 CHEVY 1500 ALSO WITH A SLOPPY CLUNK IN THE REAR END. I JUST TAKE OFF THE LINE EASY FOR NOW,U-JOINTS WERE REPLACED.:burnout: