{"product_id":"remanufactured-rear-axle-assembly-9-75-inch-3-55-ratio-12mm-studs","title":"Remanufactured Rear Axle Assembly 9.75-Inch 3.55 Ratio 12mm Studs","description":"The Zumbrota Drivetrain RAA435-2023A is a remanufactured complete axle assembly for the 1999 Ford F-150, featuring a 9.75-inch ring gear and a 3.55 ratio for rear drum brakes. This unit is built to the highest quality standards, with every axle assembly thoroughly inspected for straightness, cracks, and surface wear. Internal components, including ring and pinions, gears, clutches, and carriers, are fully inspected and tested. All bearings and seals are replaced, and gears are meticulously checked for optimal tooth contact patterns and correct rolling torque using inch-pound measurements for precise setup and longevity. The gear backlash is set to ensure proper lubrication and quiet operation, while axle tubes are inspected to meet OEM standards for straightness. Zumbrota employs an exclusive hydro-blast rinse and sandblasting procedure, followed by a proprietary shot-peened deep cleaning process for superior remanufacturing. This specific assembly features 12 MM wheel studs, 2.533 OD wheel bearings, and does not include Posi Traction. It is a semi-floating axle type and comes with the cover included, but without fluid.","brand":"Zumbrota Drivetrain","offers":[{"title":"Default Title","offer_id":52870823313720,"sku":"RAA435-2023A","price":2884.89,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/remanufactured-rear-axle-assembly-9-75-inch-3-55-ratio-12mm-studs","provider":"MOTORMIA","version":"1.0","type":"link"}