3.73 Ratio Electronic Locking Rear Axle Assembly

The Zumbrota Drivetrain RAA435-265A is a remanufactured axle assembly designed for specific Ford F-350 Super Duty models from 2011-2012. This unit is equipped with a 3.73 gear ratio, a robust Ford 10.5-inch ring gear, and an electronic locking differential, intended for Single Rear Wheel (SRW) Cab Chassis configurations with the 6.2L engine. Each Zumbrota axle assembly is rebuilt to stringent quality standards, ensuring precision and reliability. The remanufacturing process includes a comprehensive inspection of all internal components, such as ring and pinions, gears, clutches, and carriers. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced as part of the rebuild. The gears are meticulously inspected for optimal tooth contact patterns and correct rolling torque, measured in inch-pounds for precise setup and extended longevity. Proper gear backlash is set to ensure adequate lubrication and quiet operation. Additionally, axle tubes are inspected to meet OEM straightness specifications, and housings are checked for surface wear and cracks. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peening deep cleaning process, setting a high standard for axle assembly remanufacturing. This axle assembly is sold without hubs, brakes, backing plates, or axle shafts, which must be supplied separately. A refundable core charge applies to this purchase.