Rear Tandem Truck Axles

Reporting for Heavy-Duty

Tough, stable, reliable — our rear tandem axles are among the most robust and powerful in the industry. Precision cut gears, a larger differential, and a reduced driveline angle increase the longevity of the axle and drive down costs.

Our Angle on Performance

World-class engineering and design innovations make our tandem rear axles the most cost-effective and long-lasting in the industry. Here's how:

Improved Driveline Angle

Our tandem rear axle systems use an above-center position of the pinion gear. This reduces the driveline angle between the forward and rear axles. That means less driveline vibrations, lower maintenance costs, and longer life.

Precision Ground Gears

The ring gear and pinion are precision cut using a state-of-the-art dry power cutting process that ensures consistent gear mesh. Those tighter tolerances mean a quieter, smoother ride, and more confidence during for higher torque pulls.

Oil Slinger

To ensure full lubrication of the power divider, even at very low speeds, we added an oil slinger that delivers oil to the bearings in a matter of seconds, not minutes. The slinger removes the need for an oil pump in the axle, which lowers your cost of operation and maintenance.

Larger Differential

We eliminated the pinion-head bearing to make room for a larger differential, increasing stability and axle durability.

Integrated Ring Gear Design

Robustly designed to withstand the most rigorous trucking environments, the ring gear incorporates into an integrated, one-piece differential case for added strength and stability.

Brake Service & Compatibility

We believe in building versatile parts. That's why our single rear truck axles are compatible with all brakes offered by Freightliner, Sterling, and Western Star Trucks. Our AAC rear axles offer air disc brakes without any wheel limitation.

Trusted Reliability

Our axle design has been proven on the toughest roads all over the world. The global axle platform continues to be tested and improved for toughness and lower operational cost.

Service Maintenance

Our single rear axle needs less oil, while the pinion and carrier flange completely seal the axle from the dirt and grime on the road. This means easier maintenance, and a lower overall cost throughout the lifecycle of the axle.

Warranty

We back your investment with a standard, comprehensive warranty that covers your engine over the long haul. Check with your dealer for information.

Specifications

¹ Dependent on application and selected ratio.
Available with no spike differential and DCDL.