Dana 44 4.09 O.E.M. Ratio For Use With 3.91 And Up Carrier;10 Year Warranty;Computer Heat Treated 8620 Steel;Manufactured To O.E. Specifications;Double Shot Peened;Double Lapped G2 Axle and Gear G2 Dana 44 4.09 O.E.M. Ratio Ring and Pinion - 1-2033-409 1-2033-409 Ring and Pinions