Our 1550 4340 Forged Inner Axle Shafts are engineered for extreme-duty off-road and competition applications. Manufactured from premium forged 4340 chromoly, these heavy-duty inner shafts are designed to withstand the abuse of rock bouncers, mud trucks, Ultra4 cars, and high-horsepower fabricated axle builds.

Designed to pair with 1550 series U-joints and Super Duty style outer C’s and knuckles, these shafts provide exceptional strength and reliability in severe off-road environments. Each shaft is precision machined and heat treated for maximum durability and can be customized to your required length for your specific axle configuration.

Ideal for custom Dana 60 builds, fabricated front axle housings, and competition drivetrains, these shafts are built for builders looking to eliminate weak factory components in extreme-use applications.

Custom length shafts cannot be returned.

Price is per shaft.

This item is proudly designed, engineered, and manufactured in house at IMS.