{"product_id":"9-25-inch-3-90-ratio-rear-differential-assembly","title":"9.25-inch 3.90 Ratio Rear Differential Assembly","description":"The Zumbrota Drivetrain RAA435-1580B is a remanufactured rear differential assembly built to the highest standards of precision and reliability. Each assembly undergoes thorough inspection for straightness, cracks, and surface wear. All internal components, including ring and pinions, internal gears, clutches, and carriers, are inspected and tested. To ensure optimal setup and longevity, all bearings and seals are replaced, and gears are inspected for proper tooth contact patterns and correct rolling torque, with backlash set for lubrication and quiet operation.\n\nThis axle assembly is designed for Chrysler 9.25-inch axles with a 3.90 gear ratio and features a semi-floating axle type. It includes the differential cover. The remanufacturing process includes a proprietary hydro-blast rinse and sandblasting procedure on internal and external parts, followed by shot-peening for a deep clean that meets OEM standards.\n\nSpecifically, this Zumbrota Drivetrain RAA435-1580B is designed for 1990-1993 Dodge B250 vans with 3.9L or 5.2L engines. All tubes are inspected to ensure they meet OEM specifications for straightness. Housings are tested for surface wear and cracks. Additionally, 100% of internal parts are inspected, and all bearings, seals, crush sleeves, pinion nuts, and shims are replaced.","brand":"Zumbrota Drivetrain","offers":[{"title":"Default Title","offer_id":52870752796984,"sku":"RAA435-1580B","price":1923.89,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/9-25-inch-3-90-ratio-rear-differential-assembly","provider":"MOTORMIA","version":"1.0","type":"link"}