When I received my 1993 m998the speedo was not working. When I removed the speedo gear from the transfer case I found the pin to be broken. Bought a new gear and pin researched how to index the adapter in the case and got it all tightened down. Went to drive and he vehicle still no speedo. Removed the gear again and attached a drill as I have read on earlier posts. While spinning the drill the speedo would move. I have no idea where to go from here. Any help is appreciated