USA Standard 4340CM Axle Kit For 79-87 GM Truck & Blazer / GM 8.5in / 28Spline w/Spicer Joints - ZA W24118

USA Standard Gear performance axles are constructed from high-tensile strength 4340 chromoly, use superior manufacturing methods, and feature advanced heat-treating technologies to create an axle of unparalleled quality and durability.