3 1 Axle Alliance RT40-4N Front Differential for a Alliance RT40-4N $4,000 USD Ratio 3.91 Remanufactured. Alliance., Core Charge: 1000.00, Ratio: 3.91 ConditionUsedRear End3.91 ratioFits To Make(s)AllianceFits To Model(s)RT40-4NStock Number144872 MLS Number11614156CategoryDifferentials, Front Last Updated10/1/2025 LocationLouisville, KY, US Sold ByRiver City Truck Parts (855) 465-___ SHOWNUMBERCall Seller Email Seller Save More Info