Selling a brand new Yukon D44 Zip locker. Locker is complete with the exception of the Carling switch that goes in the cab ($12). The air activation solenoid is not in the pictures but IS included with sale.
"All JK D44 axles take a "Thick" cut gear set, meaning they take a 3.73 and down ratio carrier/locker.
The one you were shipped allows you to run either the late or early model ring gear with the 7/16 or 1/2" ring gear bolts. If 1/2" you just have to use a uni bit or type drill bit and just open them up to 1/2 over 7/16. IF you get a JK specific then the early model JK rear D44 with the 7/16 Ring gear bolts you have a small bolt in a larger hole.
You were sold and shipped a locker that fits all (poss with 10 min though of needed opening if you have a late model rear with 1/2" bolts), rather then a locker that only takes 1/2" bolts. If you have a after market gear set then it will have both sizes on it and you wont need to open up the holes at all."