All new from Currie! The RockJock® 70 high pinion housing center is the ultimate in strength and ground clearance for big tire off road applications! This unit is constructed of 65-45-12 ductile iron, features an angled cover design that places the cover at a 60 degree angle to the pinion gear, accepts 3 1/2" tubes and any high pinion 70 ring and pinion! The available gear sets feature a 10.6" diameter ring gear and are currently available in 5.13 ratio with a 29 spline pinion gear, and 5.38 ratio with a 35 spline pinion gear! ARB air lockers, Detroit lockers and Eaton E-lockers are all available in 35 and 40 spline to fit this unit. Additional features include a ring gear load bolt, fill plug and a drain plug that is protected by the bolt on AR400 abraison resistant skid plate. Weight on this component with all hardware and skid plate installed is 80 lbs.