Fits: Replacement for Dodge Ram 4x4 with 29-spline NV4500 5 speed transmission. (Please check the detailed compatibility in the product description.) Material: Made of high-strength steel and CNC constructed with computer programmed pulse welds. High-precision: With exact tolerances for problem-free performance, Ensure a perfect fit and long term service. Easy to install: Install the lock nut retainer on the main output shaft of the transmission. All you need just drop the transfer case and can leave the transmission still assembled in the vehicle. Retainer: The retainer simply slides into place in the shaft, and is kept secure by the transfer case's input shaft. Fits: Replacement for Dodge Ram 4x4 with 29-spline NV4500 5 speed transmission. (Please check the detailed compatibility in the product description.) Material: Made of high-strength steel and CNC constructed with computer programmed pulse welds. High-precision: With exact tolerances for problem-free performance, Ensure a perfect fit and long term service. Easy to install: Install the lock nut retainer on the main output shaft of the transmission. All you need just drop the transfer case and can leave the transmission still assembled in the vehicle. Retainer: The retainer simply slides into place in the shaft, and is kept secure by the transfer case's input shaft.