Features: In addition to the upgraded material, all of our Weddle Sportsman ring & pinion sets are shot peened after heat treat to provide extra fatigue resistance and increased durability. The teeth are cut to the Gleason profile, and shafts feature rolled 4th gear splines, precision ground bearing journals, and high quality fits and finishes throughout. Dollar for dollar, our new Weddle Sportsman r&ps are a great value over the "econo" sets currently on the market. Additional ratios and configurations coming soon!