View 4 Photos View 0 Videos Eaton RS404-3.25 Rear Differential Newly Listed $899.95 USD RS404 3.25 Inspected Takeout +$250 Core, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non Locker, ConditionUsedRear End3.25 ratioStock Number16551 MLS Number14139704CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2010 Eaton R170-4.30 Rear Differential for a Peterbilt 335 Newly Listed $1,795 USD R170 4.30 Inspected Takeout +$750 Core, 46K Capacity, Yoke: 1760, Side Gear: 46 Splines, Input: 46 Splines, Non-Locker ConditionUsedRear End4.30 ratioFits To Make(s)PETERBILTFits To Model(s)335Stock Number16550 MLS Number14139702CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2016 Eaton RDH40 Rear Differential for a Kenworth T880 Recently Updated $1,495 USD RDH40 3.70 LOCKER Inspected Takeout +$650 core, Yoke: SPL170, Side Gear: 41 Splines, Input: 39 Splines ConditionUsedRear End3.70 ratioFits To Make(s)KENWORTHFits To Model(s)T880Stock Number14737 MLS Number13780952CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2018 Eaton RSH40-3.25 Rear Differential for a Kenworth T880 Recently Updated $899 USD RSH40 3.25 Inspected Takeout +$250 Core, Yoke: SPL 170, Side Gear: 41 Spline, Input: 39 Spline, Non locker ConditionUsedRear End3.25 ratioFits To Make(s)KENWORTHFits To Model(s)T880Stock Number14601 MLS Number13755066CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton Rear Differential Recently Updated $775 USD RS404 3.70 Inspected takeout +$100 Core, Yoke 1710 Open, Side gear 41 Spline, Input 39 Spline, Non Locker ConditionUsedRear End3.55 ratioStock Number12549 MLS Number13376963CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2015 Eaton RS404-3.36 Rear Differential for a Kenworth T680 Price Drop $899.95 USD RS404 3.36 Inspected takeout +$250 CORE, Yoke 1710 Open, Side gears 41 Spline, Input 39 Spline, Non Locker ConditionUsedRear End3.36 ratioFits To Make(s)KENWORTHFits To Model(s)T680Stock Number12545 MLS Number13376959CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos 2007 Rockwell SQ100 Rear Differential for a Peterbilt 379 Recently Updated $895 USD SQ100 4.10 Inspected Takeout $350.00 CORE, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non Locker ConditionUsedRear End4.10 ratioFits To Make(s)PETERBILTFits To Model(s)379Stock Number11394 MLS Number13175902CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 9 Photos View 0 Videos 2018 Spicer S21-170 Rear Differential for a Kenworth T3 Series Recently Updated $2,250 USD S21-170 5.25 ratio Takeout +$500 Core, Rear differential drop-in pulled from a 2018 Kenworth T370 run for just 6,867 miles, non-wrecked. Spicer S21-170 model axle with 5.25 ratio.... ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T3 SeriesStock Number5626 MLS Number12301424CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos 2001 Eaton Rear Differential for a International 9400I Recently Updated $649.95 USD Eaton RS404 3.55 Inspected Takeout +$Core 150, Capacity: 110K, Ratio: 3.55, Yoke: SPL170, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedFits To Make(s)INTERNATIONALFits To Model(s)9400IStock Number12330 MLS Number13864320CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2015 Eaton R46-170D Rear Differential for a Peterbilt 320 Recently Updated $2,250 USD R46-170D 5.25 LOCKER Takeout +$750 Core, 1710 yoke, OEM# C2-2D15DE1000000000, SN: HN05076424 ConditionUsedFits To Make(s)PETERBILTFits To Model(s)320Stock Number281 MLS Number13175894CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Rockwell SQHR-4.88 Rear Differential Recently Updated $425 USD SQHR 4.88 CORE, Yoke; 1710, Side gear; 21 Spline, Input; 10 Spline ConditionUsedRear End4.88 ratioStock Number13110 MLS Number13582557CategoryDifferentials, Rear Last Updated2/11/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 10 Photos View 0 Videos Rockwell SQHR-4.44 Rear Differential Recently Updated $895 USD SQHR 4.44 ratio Inspected takeout +$350 Core, Yoke 1710, Side gear 22 Spline, Input 10 Spline ConditionUsedRear End4.44 ratioStock Number12585 MLS Number13391629CategoryDifferentials, Rear Last Updated2/12/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton RSP40-3.70 Rear Differential $899.95 USD RSP40 3.70 Takeout +$150 Core, SN: HN01433875, OEM# S11-21808-370/509826 ConditionUsedRear End3.70 ratioStock Number11196 MLS Number13146715CategoryDifferentials, Rear Last Updated2/4/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2023 Eaton RDH40 Rear Differential for a Kenworth T880 $1,495 USD RDH40 3.70 LOCKER Inspected Takeout +$650 Core, Yoke: SPL170, Side Gear: 41 Splines, Input: 39 Splines, ConditionUsedRear End3.70 ratioFits To Make(s)KENWORTHFits To Model(s)T880Stock Number16250 MLS Number14092627CategoryDifferentials, Rear Last Updated2/3/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos Eaton RSH40-3.70 Rear Differential $899 USD RSH40 3.70 Inspected takeout +$250 core, Old stock, mileage unknown. Exchange Yoke; 1710, Side gear; 41 Spline, Input shaft; 39 Spline ConditionUsedRear End3.70 ratioStock Number13992 MLS Number13659359CategoryDifferentials, Rear Last Updated2/6/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 6 Photos View 0 Videos 2011 Eaton rsh40-3.90 Rear Differential for a Kenworth T800 $899 USD RSH40 3.90 Inspected takeout +$250 Core Yoke; SPL170, Side gears; 41 Spline, Input shaft; 39 Spline, ConditionUsedRear End3.90 ratioFits To Make(s)KENWORTHFits To Model(s)T800Stock Number12658 MLS Number13418798CategoryDifferentials, Rear Last Updated2/6/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2012 Eaton RSP40-3.42 Rear Differential for a Kenworth T660 $899 USD RSP40 3.42 Takeout +$250 core, SN: HN03631464, OEM# C05-541112221101034 ConditionUsedRear End3.42 ratioFits To Make(s)KENWORTHFits To Model(s)T660Stock Number11258 MLS Number13160120CategoryDifferentials, Rear Last Updated2/6/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Rockwell MRL2014X Rear Differential $850 USD Rear Carrier 4.33 Ratio Locker ConditionUsedFits To Make(s)RockwellFits To Model(s)MRL2014XStock NumberR12587073 MLS Number14118786CategoryDifferentials, Rear Last Updated1/30/2026 LocationSpokane Valley, WA, US Sold BySpalding Truck Parts (833) 432-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Eaton rsh40-3.90 Rear Differential $899.95 USD Eaton RSH40 3.90 Inspected Takeout + $150 Core, Ratio: 3.90, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-locker ConditionUsedRear End3.90 ratioStock Number15429 MLS Number13910093CategoryDifferentials, Rear Last Updated1/31/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos Eaton RS405-4.33 Rear Differential $899.95 USD Eaton RS405 4.33 Inspected Takeout +$150 Core Fee Like for like, Capacity: 40K, Ratio: 4.33, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedRear End4.33 ratioStock Number15324 MLS Number13869669CategoryDifferentials, Rear Last Updated1/31/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos 2010 Eaton rsh40-3.90 Rear Differential for a Kenworth T800 $899 USD RSH40 3.90 Inspected takeout +$150 core exchange *must be like for like*, Yoke; 1710, Side gear; 41 Spline, Input shaft; 39 Spline ConditionUsedRear End3.90 ratioFits To Make(s)KENWORTHFits To Model(s)T800Stock Number15303 MLS Number13861021CategoryDifferentials, Rear Last Updated1/31/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 2006 Alliance RT40-4NR358 Rear Differential $950.14 USD MERITOR ConditionUsedRear End3.58 ratioFits To Make(s)ALLIANCEFits To Model(s)RT40-4NR358Stock Number2545135 MLS Number13741222CategoryDifferentials, Rear Last Updated1/28/2026 LocationSpokane Valley, WA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2020 Detroit RT40-NFDRR216 Rear Differential $1,995.16 USD 186630-821- Used Detroit RT40 Rear Rear Differential 2.16 Ratio, 2020 FREIGHTLINER CASCADIA 126 ConditionUsedFits To Make(s)DETROITFits To Model(s)RT40-NFDRR216Stock Number2444709 MLS Number13109914CategoryDifferentials, Rear Last Updated1/28/2026 LocationSpokane Valley, WA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 2005 Eaton RS404-3.70 Rear Differential for a Freightliner COLUMBIA $899 USD RS404 3.70 Inspected Takeout +$250 Core, SN: HN01443254, OEM# S11-21808-370 ConditionUsedRear End3.70 ratioFits To Make(s)FREIGHTLINERFits To Model(s)COLUMBIAStock Number11280 MLS Number13160162CategoryDifferentials, Rear Last Updated1/28/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 12 Photos View 0 Videos 2006 Eaton RSP40-3.70 Rear Differential for a Kenworth T800 $899 USD RSP40 3.70 Takeout +$150 Core, Rear rear differential drop-in / gears pulled from a 2006 Kenworth T800 (non-wrecked) P/N F8PTP514/0, 511330, spec - 0731131, serial HN01918604 .... ConditionUsedFits To Make(s)KENWORTHFits To Model(s)T800Stock Number4932 MLS Number12300847CategoryDifferentials, Rear Last Updated1/28/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info