Yeah key thing is to figure out whether to focus on rear or trans...true story i had the retaining pin fall out of an open rear and the retainer was banging inside the housing, I felt it in my 4 speed shifter and I had thought something was up in the trans. I had happened to turn my ear toward the backseat area in my Dart and realized it was coming from the rear. The hammering sound was transferring up through the driveshaft to the shifter...
