High performance Ring & Pinion gear set for Dana Spicer 70 in a 5.86 ratio and 5/8" offset. We use 8620 steel in all their Ring & Pinion sets for high strength and long life. They use the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up. These Ring & Pinion sets come standard with a one-year warranty. Weight: 23 Lb