{"product_id":"3-73-gear-ratio-g80-posi-traction-differential-carrier","title":"3.73 Gear Ratio G80 Posi Traction Differential Carrier","description":"The Zumbrota Drivetrain RAA435-2257C-P is a remanufactured complete axle assembly built for GM 8.6-inch differentials, specifically for 2007-2008 Chevrolet Silverado and GMC Sierra 1500 models.\n\nThis assembly features a 3.73 gear ratio (GT4 option) and includes a G80 Posi Traction locker for enhanced traction. It is designed for vehicles equipped with the JF3 or JL7 brake options. Critically, this assembly is *not* compatible with vehicles that have the JL4 Active Brake Control option. The product is a complete axle assembly, but it explicitly does not include hubs, brakes, backing plates, or axle shafts.\n\nEach Zumbrota Drivetrain Axle Assembly undergoes a rigorous remanufacturing process to ensure precision and reliability. This includes thorough inspection for straightness, cracks, and surface wear on all components. All internal parts such as ring and pinions, gears, clutches, and carriers are fully inspected and tested. To guarantee longevity and quiet operation, all bearings and seals are replaced, and gears are set with precise backlash and rolling torque measurements. Zumbrota employs a unique cleaning process involving hydro-blasting, sandblasting, and proprietary shot-peening for a superior finish.","brand":"Zumbrota Drivetrain","offers":[{"title":"Default Title","offer_id":52870896943416,"sku":"RAA435-2257C-P","price":2736.93,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/3-73-gear-ratio-g80-posi-traction-differential-carrier","provider":"MOTORMIA","version":"1.0","type":"link"}