Dana 60 Rear Axle Assembly 3.55 Ratio

The Zumbrota Drivetrain RAA435-173A-P is a remanufactured complete axle assembly designed for Dana 60 rear differentials, specifically noted for the 2008 Ford E150. It features a 3.55 gear ratio and a 9.75-inch ring gear, utilizing semi-float axles and equipped with Posi Traction for enhanced performance. Each Zumbrota axle assembly is meticulously rebuilt to meet high standards of precision and reliability. The process involves a comprehensive inspection of all internal components, including ring and pinions, internal gears, clutches, and carriers. All bearings, seals, crush sleeves, pinion nuts, and shims are replaced. Gears are set up with attention to optimal tooth contact patterns and correct rolling torque, measured in inch-pounds for precise setup and longevity. The gear backlash is set to ensure proper lubrication and quiet operation. The axle tubes are inspected and straightened to meet OEM specifications, and housings are tested for surface wear and cracks. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-enticed deep cleaning process, setting a high standard for axle assembly remanufacturing. This unit does not include hubs, brakes, or axle shafts, focusing solely on the core differential assembly.