I Was looking for replacement u joints for a 1964 Jeep J 200 4x4 Dana 44 closed knuckle axle shaft. I spoke with another company who said the can't find any supplier for that axle shaft ujoints, and probable would not be able to find any. I did a internet search, and found Torque King, which had the measurements of the joints. I compared with mine, and it was the same. I checked again when I received them, and they are exact! 1. Fast delivery 2.Tech Tips are excellent 3. They even had the proper grease, which I ordered for my closed knuckle. Thank you Torque King!!