This is the 29 tooth overdrive that is used on 1954 and up models: CJ, Pick Up Truck, Station Wagon and Sedan Delivery Models. This overdrive bolts on the back of the transfer case in the PTO hole. This over drive has a separate shifter that you shift in and out that is fully synchronized. The overdrive can be used in 1st, 2nd, 3rd and reverse as well as 2WD high, 4WD low and 4WD high. This makes a gear in between each gear which is nice for climbing hills and or other off road obstacles. This overdrive will reduce your RPM's in 3rd gear by 25% making the Jeep easier to drive in today's conditions. Included is the overdrive, shifter assembly, directions, 1 Year warranty and its made in the USA.
NOTE: You must count the gear on the back of the transfer case behind the tin plate with 5 bolts before ordering.
ON V6 models this over drive fits T86 transmissions and is available for T14 models but special order is required call on availability. Also can be used on FC models but a linkage system must be made to work on it.