Drivetrain America carries axle kits for both front and rear differentials for applications like Jeep, truck and muscle car applications. Great for a front or rear end swap or rebuilding a classic vehicle, axle kits contain all the components to replace, repair or upgrade the axle shafts in a front or rear differential for performance and off-road usage. Axle kits can also be used to upgrade the original shafts. Upgrades can include stronger materials, such as 4340 Chromoly, and higher spline counts for greater strength. Chromoly axle kits are available from Drivetrain America from brands like Yukon, USA Standard, Motive Gear, Spicer and more.