Stay moving and in control with Alloy USA drivetrain and differential essentials. From the axles themselves to the joints that connect them, Alloy has your off-roading drivetrain needs mastered. Specializing in gear for trucks and SUVs, Alloy drivetrain components are designed by the most knowledgeable engineers and constructed by the most skilled manufacturers. So, equip your ride with the best of the best drivetrain parts.