Replace the Speedometer Gear in a NP-231 Transfer Case

The only tool you will need is a 13mm or 1/2" Wrench

Quatratec Jeep Speedometer Gear Tooth Chart Link: https://www.quadratec.com/c/reference/jeep-speedometer-gear-tooth-chart

View links to the O-ring and speed gear on the Jeep Sheep Website: https://sites.google.com/view/jeep-sheep-tv/home ... https://www.youtube.com/watch?v=C_sfhbPGhe4