i installed a tko-600 in my 89 mustang. drove fine for a hundred miles or so, then speedo and odometer stopped working at the same time. i looked at the gears in the tranny and they were both fine. when i took the cable off, there was a 3 inch "rod" that goes into the "column" that the gear is attached to. is that "rod" suppose to be attached to the speedometer cable? if so, then i most likely need to replace the cable. if not, then maybe the cluster is bad?