Yukon Gear Front 4340 Chrome-Moly Axle Kit For 79-87 GM 8.5in 1/2 Ton Truck and Blazer

If you're working on a 1979-1987 GM 1/2 Ton truck or Blazer with the 8.5-inch rear axle, this Yukon Gear & Axle front axle kit is built to handle the demands of serious off-road use or heavy-duty work. This kit replaces both the inner and outer axle shafts on the front of your vehicle, ensuring you have a strong, reliable drivetrain for challenging conditions. It's designed to fit a range of popular trucks and SUVs, including models like the Chevrolet K10 and GMC K1500, providing a direct replacement for worn-out or damaged components.

Yukon builds these axles using high-tensile strength 4340 chromoly steel, a material known for its exceptional strength and durability, which is crucial for components that transmit power under load. The manufacturing process includes cold roll formed splines, which help maintain the material's integrity for a stronger, more reliable connection. They also feature advanced heat treating, specifically induction coil heat treating, to further enhance toughness and resistance to fatigue. This kit comes complete with both inner and outer axles for each side, featuring 28 splines on the inner shafts and 19 splines on the outer shafts, along with the Yukon Super Joints. The Super Joints are a heavy-duty U-joint replacement designed for increased strength and smoother operation, especially at extreme angles.

This comprehensive kit includes everything needed to replace both front axle shafts, ensuring a balanced and robust drivetrain. The 4340 chromoly construction means these axles are well-built to withstand the stresses of towing, hauling, and off-road adventures. When installing, always refer to the manufacturer's specific instructions to ensure proper assembly and fitment for your vehicle's differential.