The Dirt King Long Travel Axle Assemblies are purpose-built extended axle shafts that retain 4WD driveline function when upgrading to a Dirt King long travel suspension system on compatible 4WD trucks. Without proper extended axles, the stock shafts will bind or bottom out at increased suspension travel — these assemblies solve that by providing correctly lengthened shafts for seamless integration with long travel suspension geometry.
Each assembly is precision machined from high-grade materials and paired with inspected OEM axle cores for a balanced and reliable drivetrain solution. Heat-treated and assembled with new CV boots and high-grade CV grease, these axles deliver the strength and serviceability expected for serious off-road builds. Two material grades — 4340 chromoly and the even stronger 300M option — are offered so you can choose the appropriate level of durability for your intended use.
Specifically engineered to work with the Dirt King long travel kits, these 4WD axle assemblies help ensure your truck’s drive system remains durable and functional even with increased suspension articulation and extended wheel travel.
Toyota Tundra 4WD 2007-2021
Remove the stock front axle shafts and install the extended Dirt King Long Travel Axle Assemblies using the factory differential output and knuckle connections. Ensure all CV joints are oriented correctly and torque fasteners to specification. Check boot fitment and CV alignment before operating.
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