Electronic vehicle speed sensor conversion kit for mechanical speedo drive, NP241C transfer cases. Removes the mechanical speedometer driver hardware and replaces it with an electronic vehicle speed sensor. Our conversion kit is a 100% bolt on installation that does not require any irreversible transfer case modifications. We believe our kit offers an OEM level of durability and reliability for providing an electronic vehicle speed signal all at a price equal or lower than add-on vehicle speed signal adapter options currently available on the market.