This is a genuine AAM slip yoke with a balancer for the 1415 series universal joint. This fits 2003 and newer Dodge Ram 2500 and 3500 series trucks with the 271 or 273 New Process transfer case. The original AAM part number was 40038537. PLEASE, PLEASE, PLEASE BE SURE OF YOUR U-JOINT SIZE BEFORE ORDERING! DON'T EMAIL US COMPLAINING THAT YOUR U-JOINT WON'T FIT! Dodge also had a yoke with the balancer for the 1485 series u-joint, but we don't have that one available. Shipping is $20 in the continental U.S.