This is a speedometer gear for a vintage Willys, Jeep, and scouts. These were used up to 1980 Found in Dana 18, Dana 20 , Quadra trac and the first year of the Dana 300. 
Good used condition.
P/N 890240 with 16 teeth.
This speedometer gear shaft is straight cut and is used in a housing with a rubber seal. Be sure to check which style gear you need.
If this isn't the right gear, check our eBay store for our selection of speedometer gears.
Please see our eBay store for more vintage Jeep parts.