View 1 Photo View 0 Videos Eaton RS405 Rear Differential Recently Updated $600 USD Good used Eaton DS405 Rear, Rear Differential Assembly. 3.90 Ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.90 ratioFits To Make(s)EATONFits To Model(s)RS405Stock NumberRyd RS405/3.90/41 MLS Number10204591CategoryDifferentials, Rear Last Updated1/30/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos Eaton rsh40-3.90 Rear Differential Recently Updated $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 6 Photos View 0 Videos Eaton RS405-4.33 Rear Differential Recently Updated $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 6 Photos View 0 Videos 2010 Eaton rsh40-3.90 Rear Differential for a Kenworth T800 Recently Updated $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 1 Photo View 0 Videos Eaton RSP40 Rear Differential Newly Listed $795 USD RSP40 USED TAKEOUT 5.57 RATIO. WILL INSPECT IN OUR GEARSHOP. 90 DAY WARRANTY., Axle Spline Count: 41, Ratio: 5.57 ConditionUsedRear End5.57 ratioStock NumberP-60985 MLS Number14117966CategoryDifferentials, Rear Last Updated1/30/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Eaton RS41 Rear Differential Newly Listed Contact for price Good Condition Rear Differential RS41 Ratio 3.25, Ratio: 3.25 ConditionUsedRear End3.25 ratioStock Number976408 MLS Number14116065CategoryDifferentials, Rear Last Updated1/29/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2001 Eaton RS405 Rear Differential for a Mack CH Recently Updated $425 USD (USED) Eaton RS405 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 127603 ConditionUsedFits To Make(s)MackFits To Model(s)CHStock Number25375729 MLS Number12039648CategoryDifferentials, Rear Last Updated1/29/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2000 Eaton RS404 Rear Differential for a Western Star 4900EX Recently Updated $425 USD (USED) Eaton RS404 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: - ConditionUsedFits To Make(s)Western Star TrucksFits To Model(s)4900EXStock Number25657582 MLS Number12960049CategoryDifferentials, Rear Last Updated1/29/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2007 Eaton RS405 Rear Differential for a International 7600 Recently Updated $425 USD (USED) Eaton RS405 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: 131812 ConditionUsedFits To Make(s)InternationalFits To Model(s)7600Stock Number25676244 MLS Number13013722CategoryDifferentials, Rear Last Updated1/29/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos 2000 Eaton RS405 Rear Differential for a Mack CX Recently Updated $425 USD (USED) Eaton RS405 Ratio: 3.90 Side Gear Splines: 41 W/ Locker: NO Cast#: NA ConditionUsedFits To Make(s)MackFits To Model(s)CXStock Number25789208 MLS Number13558688CategoryDifferentials, Rear Last Updated1/29/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RSP41 Rear Differential $1,215 USD RSP41-370 - Reconditioned ConditionRemanufacturedRear End3.70 ratioStock NumberRSP41-370-REC MLS Number14028893CategoryDifferentials, Rear Last Updated1/28/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Eaton Rear Differential for a Eaton 19055-T $1,250 USD Good used Eaton 19055-T 2 speed Rear with E-Brake, Rear Differential Assembly. 6.50-8.86 ratio. 90 day guarantee for swap or refund ConditionUsedFits To Make(s)EATONFits To Model(s)19055-TStock NumberRyd 19055-T/6.50-8. MLS Number14114000CategoryDifferentials, Rear Last Updated2/4/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Eaton 21065-T Rear Differential $1,250 USD Good used Eaton 21065-T 2 speed Rear with E-Brake, Rear Differential Assembly. 6.50-8.86 ratio. 90 day guarantee for swap or refund ConditionUsedFits To Make(s)EATONFits To Model(s)21065-TStock NumberRyd 21065-T/6.50-8. MLS Number14113995CategoryDifferentials, Rear Last Updated1/28/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton 23080-S Rear Differential $850 USD Good used Eaton 23080-S Rear, Rear Differential Assembly. 3.90 Ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.90 ratioFits To Make(s)EATONFits To Model(s)23080-SStock NumberRyd 23080S/3.90/36 MLS Number12159608CategoryDifferentials, Rear Last Updated1/31/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Eaton 3.70 Rear Differential Contact for price ConditionUsedStock Number925 MLS Number14022666CategoryDifferentials, Rear Last Updated1/28/2026 LocationORLANDO, FL, US Sold ByUSA Trade & Exports Inc. (844) 484-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 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 11 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
View 2 Photos View 0 Videos 2020 Eaton R46-170D Rear Differential for a Peterbilt 367 $2,420 USD (USED) Eaton R46-170D Ratio: 4.78 Side Gear Splines: 46 W/ Locker: YES Cast#: CANNOT VERIFY ConditionUsedFits To Make(s)PeterbiltFits To Model(s)367Stock Number25290925 MLS Number11583663CategoryDifferentials, Rear Last Updated1/29/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos 1984 Eaton 17220 Rear Differential for a Ford LN800 $1,150 USD (USED) Eaton 17220 Ratio: 6.57 Side Gear Splines: 39 W/ Locker: NO Cast#: N/A Ref# N/A ConditionUsedFits To Make(s)FordFits To Model(s)LN800Part NumberN/AStock Number25783076 MLS Number13525988CategoryDifferentials, Rear Last Updated1/25/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 8 Photos View 0 Videos Eaton RS404-3.70 Rear Differential $899.95 USD Eaton RS404 3.70 Inspected Takeout +$150 Core, Ratio: 3.70, Yoke: SPL170, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedRear End3.70 ratioStock Number15417 MLS Number13908208CategoryDifferentials, Rear Last Updated1/24/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Eaton RS402 Rear Differential $899.95 USD Eaton RS402 4.33 +$150 Core, Capacity: 40K, Ratio: 4.33, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker ConditionUsedRear End4.33 ratioStock Number15402 MLS Number13884893CategoryDifferentials, Rear Last Updated1/24/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos 2008 Eaton 21060S Rear Differential for a International 4400 $400 USD 21060S - 5.57 Ratio - Pullout - P/N 510916. DIFF ONLY, HOUSING SOLD SEPARATELY ConditionUsedRear End5.57 ratioFits To Make(s)INTERNATIONALFits To Model(s)4400Stock Number1272-3 MLS Number13891652CategoryDifferentials, Rear Last Updated1/23/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Eaton DSP41 Rear Differential for a 2016 Kenworth T680 $795 USD RSP41 3.36 RATIO USED TAKEOUT, WILL INSPECT IN OUR GEARSHOP. 90 DAY WARRANTY, Ratio: 3.36 ConditionUsedRear End3.36 ratioFits To Make(s)KenworthFits To Model(s)T680Will Fit Year(s)2016Stock Number11826-4 MLS Number14106489CategoryDifferentials, Rear Last Updated1/23/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Eaton RS404 Rear Differential $1,350 USD RS404-336 - Rebuilt ConditionRemanufacturedRear End3.36 ratioStock NumberRS404-336-REB MLS Number13962034CategoryDifferentials, Rear Last Updated1/22/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos Eaton RSP40-3.55 Rear Differential $899.95 USD Eaton RSP40 3.55 +$150 Core, Ratio: 3.55, Yoke: 1710, Side Gear: 41 Splines, Input: 39 Splines, Non-Locker, ConditionUsedRear End3.55 ratioStock Number15426 MLS Number13908217CategoryDifferentials, Rear Last Updated1/22/2026 LocationSpokane Valley, WA, US Sold ByHigh Mountain Horsepower (833) 913-___ SHOWNUMBERCall Seller Email Seller Save More Info