3.73 Ratio 10.5" Rear Axle Assembly

The Zumbrota Drivetrain RAA435-267F is a complete, remanufactured axle assembly specifically designed for 2013-2014 Ford F-250 and F-350 trucks equipped with the 10.5" axle, a 3.73 gear ratio, Single Rear Wheel (SRW) configuration, and a gas engine. This axle assembly is rebuilt to stringent quality standards, emphasizing precision and reliability. Each unit undergoes a comprehensive inspection of its housing for straightness, cracks, and surface wear. Internally, all components are rigorously tested, including the ring and pinion gears, internal gears, clutches, and carriers. To ensure optimal performance and longevity, all bearings, seals, crush sleeves, pinion nuts, and shims are replaced with new parts. The gear setup is meticulously calibrated, with tooth contact patterns and rolling torque verified using precise inch-pound measurements, and gear backlash is set to ensure proper lubrication and quiet operation. Zumbrota Drivetrain employs an exclusive cleaning process that includes hydro-blasting and sandblasting, followed by a proprietary shot-peened deep cleaning. This extensive process restores housings to an OEM finish, setting a high standard for remanufactured axle assemblies. The commitment to quality ensures that each RAA435-267F axle assembly meets or exceeds original equipment specifications.