USA Standard 4340 Chrome-Moly axles provide up to 50% increased strength over stock axles for use in extreme performance applications with large tires and high horsepower. USA Standard's Chromoly 4340 axles are manufactured using the latest technologies and the highest quality materials to ensure high strength and long life.

This kit comes with inner & outer axles for both left and right sides along with U/joints. (Assembly Required)

Application: 1979-1987 GM 8.5" Corporate Front end

Inner Axle Spline: 30 (requires 30 spline carrier upgrade)

U-Joint: Yukon Super Joint (not for street use)