Ensure reliable repairs with the GM 19133126 Transfer Case Rear Output Bearing Mainshaft Snap Ring, designed for Duramax 2007-2019. This OEM replacement securely retains the rear output bearing on the mainshaft, with two snap rings needed for installation. Made from high-quality materials, it offers superior durability and long-term performance. Trust GM's commitment to excellence for your vehicle repairs and upgrades. Note: Fits 31-spline output shafts; MP1222 uses 32-spline.