Alloy USA axles use high-tensile strength 4340 chromemoly that is heat-treated twice, making them up to 30 percent stronger than stock. These axle shafts come completely assembled with inner and outer shafts, U-joints, and full circle clips. The kits include both passenger and driver side axle shafts.
Comments: I purchased a set of the Alloy axles from Northridge 4x4, after the total destruction of both front axles on a wheeling trip. I have since then put about 30K miles on the axle set, and put a far harder beating on them. I have had no issues, and no failures! These things are worth evry penny!