3 0 Eaton RS404-3.90 Rear Differential $899 USD Eaton RS404 3.90 Inspected Takeout +$250 Core, Capacity: 40K, Ratio: 3.90, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedRear End3.90 ratioStock Number15366 MLS Number13876408CategoryDifferentials, Rear Last Updated11/14/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Eaton RS404-3.90 Rear Differential $899.95 USD Eaton RS404 3.90 Inspected Takeout +$250 Core, Capacity: 40K, Ratio: 3.90, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedRear End3.90 ratioStock Number15358 MLS Number13871762CategoryDifferentials, Rear Last Updated11/8/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
6 0 2002 Eaton RS404-3.90 Rear Differential for a Kenworth T800 $899.95 USD Eaton RS404 3.90 Inspected Takeout +$150 Core, Capacity: 40K, Ratio: 3.90, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker, ConditionUsedRear End3.90 ratioFits To Make(s)KENWORTHFits To Model(s)T800Stock Number15325 MLS Number13869670CategoryDifferentials, Rear Last Updated11/8/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Eaton RS404-3.90 Rear Differential $899 USD RS404-3.90 inspected takeout+$250 core, Yoke 1710 full round, Side gears 41 spline, Input39 spline ConditionUsedRear End3.90 ratioStock Number12289 MLS Number13315709CategoryDifferentials, Rear Last Updated11/5/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 2001 Eaton RS404-3.90 Rear Differential for a Peterbilt 379 $899 USD RS404 3.90 Inspected takeout +$250 core, Yoke; 1710, Side gear; 41 Spline, Input shaft; 39 spline ConditionUsedRear End3.90 ratioFits To Make(s)PETERBILTFits To Model(s)379Stock Number14993 MLS Number13810843CategoryDifferentials, Rear Last Updated10/8/2025 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info