Complete Axles & Axle Assemblies

Upgrade your Jeep or 4x4 with a complete axle assembly built for larger tires, increased horsepower, and demanding off-road use. Complete axle upgrades offer significantly more strength than many factory axle assemblies, making them an ideal choice for modified Jeeps running larger tires, suspension lifts, or tackling difficult trails.

Northridge4x4 carries heavy-duty complete front and rear axles from leading manufacturers including Dana, Dynatrac, Currie, Teraflex, and more. Shop axle assemblies for popular Jeep platforms and choose from different gear ratios, differential options, and configurations to match your vehicle and build.

Factory axles are engineered around a vehicle's original tire size, weight, power, and intended use. Adding oversized tires, a suspension lift, additional vehicle weight, or more horsepower can place greater loads on axle shafts, housings, gears, bearings, and other drivetrain components.

Heavy-duty complete axle assemblies can address these limitations with upgrades such as thicker axle tubes, reinforced inner C's and brackets, chromoly axle shafts, stronger housings, heavy-duty differential covers, larger ring-and-pinion components, and upgraded wheel-end components. Features vary by manufacturer and axle, so compare specifications when choosing the right assembly for your build.

For heavily modified Jeeps, upgrading the complete axle can provide a stronger foundation than continually upgrading individual components of the factory axle.

Increasing tire size creates additional leverage and stress throughout the drivetrain. If you're building a Jeep for 35-inch, 37-inch, 40-inch, or larger tires, axle strength and gearing should be important considerations.

Complete heavy-duty axles are available in a variety of configurations to support larger tires and demanding off-road use. Choosing the correct axle depends on your Jeep, tire size, vehicle weight, driving style, horsepower, and the type of terrain you plan to tackle.

Proper axle gearing is equally important. Selecting the appropriate gear ratio can help compensate for larger tires and restore performance both on and off the trail.

Many complete axle assemblies are available with upgraded differentials or traction devices, including selectable electronic lockers, air lockers, and limited-slip differentials.

A selectable locker locks both axle shafts together when engaged, allowing both tires to receive power even when one has little or no traction. This can provide a major advantage when rock crawling or navigating mud, snow, steep climbs, and other low-traction terrain.

A limited-slip differential automatically helps transfer torque toward the tire with greater traction while still allowing differentiation between the wheels. It can be a good choice for vehicles that spend significant time on the street while still benefiting from additional traction off-road.

The best differential depends on how you use your Jeep. Dedicated trail and rock-crawling builds may benefit from selectable lockers, while mixed street-and-trail vehicles may have different priorities.

When shopping for a complete axle assembly, consider:

Whether you're replacing a factory axle or building a Jeep for serious off-road use, Northridge4x4 carries complete axle assemblies for Jeep and 4x4 applications from some of the industry's leading drivetrain manufacturers. Find the axle, gearing, and differential configuration that fits your build and get the strength and traction you need for your next trail.