ok, this is probably a silly question, ut i have to be sure. i pulled off my rear drive shaft while troubleshooting some DW and i notice that when i stood it on end, i heard something slide inside of the driveshaft, then when i flipped it onto the other end i heard it again. i asked everyone i know(none of whom are jeepers) and they all said they never heard of such a thing so i figured with this many comanche masters in one place that someone could help me out.