View 1 Photo View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2006 Kenworth T800 $695 USD RSP40 USED TAKEOUT, 3.70 RATIO. WILL INSPECT IN OUR GEARSHOP, 90 DAY WARRANTY., Ratio: 370 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2006Stock Number52726-3 MLS Number14424775CategoryDifferentials, Rear Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2012 Kenworth T800 $595 USD RSP40 REAR DIFFERENTIAL 3.42 RATIO WILL INSPECT, 90 DAY WARRANTY, Ratio: 3.42 ConditionUsedRear End3.42 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2012Stock Number60925-4 MLS Number13687194CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Dana-Spicer D46-170 Rear Differential for a 2006 Kenworth T800 $2,895 USD RECON R46-170D LOCKER 4.10. 1ST 6MONTH PARTS AND LABOR WARRANTY LAST 6 MONTH PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE, Ratio: 4.10, Casting#: NA ConditionRemanufacturedRear End4.10 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2006Stock Number32025-16 MLS Number13463581CategoryDifferentials, Rear Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RSP41 Rear Differential for a 2007 Kenworth T800 $595 USD RSP41 RR 3.55 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 3.55 ConditionUsedRear End3.55 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2007Stock Number80423-4 MLS Number12246709CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RSP40 Rear Differential for a 2004 Kenworth T800 $650 USD RSP40 3.70 INSPECTED IN OUR GEAR SHOP,HAS BEEN REPLACED, Ratio: 3.70 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2004Stock Number50123-8 MLS Number12057291CategoryDifferentials, Rear Last Updated6/13/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RS405 Rear Differential for a 1999 Kenworth T800 $650 USD RS405 4.11 WAS WELLER REMAN,INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 4.11 ConditionUsedRear End4.11 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1999Stock Number50223-9 MLS Number12039627CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RSP40 Rear Differential for a 2012 Kenworth T800 $595 USD RSP40 3.42 INSPECTED IN OUR GEAR SHOP 90 DAY WARRANTY, Ratio: 3.42 ConditionUsedRear End3.42 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2012Stock Number122422-8 MLS Number11823958CategoryDifferentials, Rear Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2007 Kenworth T800B Contact for price MILES790780, Ratio: 355 ConditionUsedRear End3.55 ratioFits To Make(s)KenworthFits To Model(s)T800BWill Fit Year(s)2007Stock Number205492-4 MLS Number12865671CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RS404 Rear Differential for a 1998 Kenworth T800 Contact for price WELLER REMAN, Ratio: 370 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1998Stock Number765415-4 MLS Number12627748CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer R46-170DH Rear Differential for a 2005 Kenworth T800B Contact for price HAS LOCKER, Ratio: 410 ConditionUsedRear End4.10 ratioFits To Make(s)KenworthFits To Model(s)T800BWill Fit Year(s)2005Stock Number116523-2 MLS Number12292093CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2004 Kenworth T800 Contact for price MILES 300253, Ratio: 411 ConditionUsedRear End4.11 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2004Stock Number080569-4 MLS Number11703830CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RS402 Rear Differential for a 1987 Kenworth T800 Contact for price GOOD SHAPE, Ratio: 370 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1987Stock Number344455-5 MLS Number10689903CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RS404 Rear Differential for a 1995 Kenworth T800 Contact for price GOOD, Ratio: 390 ConditionUsedRear End3.90 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1995Stock Number721822-5 MLS Number9785961CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer RS402 Rear Differential for a 1990 Kenworth T800 Contact for price AXLE HAS BUD LUG'S, Ratio: 370 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1990Stock Number550026-4 MLS Number9716365CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2002 Kenworth T800 Contact for price miles 558454 axle has pilot lug's, Ratio: 370 ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2002Stock Number706415-3 MLS Number9659974CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer DS404 Rear Differential for a 2000 Kenworth T800 Contact for price AXIL HAS ABS AND PILOT LUGS, Ratio: 390 ConditionUsedRear End3.90 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2000Stock NumberYJ8025-4 MLS Number9460157CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer D46-170 Rear Differential for a 2011 Kenworth T800 Contact for price 2011 KW T800 SPICER D46-170, DOUBLE LOCKS, 3.58 RATIO, 46000 LBS, Serial#: 79429338, Ratio: 3.58 ConditionUsedRear End3.58 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2011Stock Number3702-KW-4 MLS Number13347548CategoryDifferentials, Rear Last Updated5/13/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Dana-Spicer D46-170 Rear Differential for a 2015 Kenworth T800 Contact for price 2015 KW T800 SPICER D46-170, 3.91 RATIO, NO LOCKS, 46000 LBS, Serial#: 79485667, Ratio: 3.91 ConditionUsedRear End3.91 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2015Stock Number3680-KW-3 MLS Number13347367CategoryDifferentials, Rear Last Updated5/13/2026 LocationSTURGEON COUNTY, AB, Canada Sold ByBadger Truck Parts Ltd. (855) 624-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Dana-Spicer DS404 Rear Differential for a 1999 Kenworth T800 Contact for price (Used) 1999 Kenworth T800, REAR DIFFERENTIAL GEARS ONLY- Make: Spicer, Model: DS404, Ratio: 3.70, Capacity: 20,000 Lbs, For more information about this item, give us a call. We ship... ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1999Stock NumberP-59436 MLS Number12313768CategoryDifferentials, Rear Last Updated6/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Dana-Spicer DSP40 Rear Differential for a 2006 Kenworth T800 Contact for price (Used) 2006 Kenworth T800, REAR DIFFERENTIAL GEARS ONLY- Part Number: 514522, Serial Number: HN01873505, Make: Spicer, Model: DSP40, Ratio: 3.36, Capacity: 20,000 lbs, For more information... ConditionUsedRear End3.36 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2006Part Number514522Stock NumberP-68747 MLS Number12539816CategoryDifferentials, Rear Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Dana-Spicer DSP41 Rear Differential for a 2014 Kenworth T800 Contact for price (Used) 2014 Kenworth T800, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: 511470, Serial Number: TBD, Make: Spicer, Model: DSP41, Ratio: 3.90, Capacity: 20,000 Lbs, For more... ConditionUsedRear End3.90 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2014Part Number511470Stock NumberP-73042 MLS Number12650120CategoryDifferentials, Rear Last Updated6/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Dana-Spicer RSP40 Rear Differential for a 2012 Kenworth T800 Contact for price (Used) 2012 Kenworth T800, COMPLETE REAR DIFFERENTIAL GEARS ONLY- Part Number: 511330, Serial Number: HN03700834, Custom Number: C05-542012221401037, Make: Spicer/Dana, Model: RSP40, Ratio:... ConditionUsedRear End3.70 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2012Part Number511330Stock NumberP-72868 MLS Number12645109CategoryDifferentials, Rear Last Updated6/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Dana-Spicer DS404 Rear Differential for a 1996 Kenworth T800 Contact for price (Used) 1996 Kenworth T800, REAR DIFFERENTIAL GEARS ONLY- Part Number: RS404 R3.90, Serial Number: A39866, Make: Spicer, Model: DS404, Ratio: 3.90, Capacity: 20,000 Lbs, Reference images... ConditionUsedRear End3.90 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1996Part NumberRS404 R3.90Stock NumberP-56864 MLS Number12258456CategoryDifferentials, Rear Last Updated6/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Dana-Spicer R46-170H Rear Differential for a 2006 Kenworth T800 Contact for price Dana R46-170H rear-rear differential, hub to hub, Ratio 4.10. 23,000 lbs. capacity. Call for details we ship everywhere., Ratio: 4.10 ConditionUsedRear End4.10 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2006Stock NumberKW-0691-5 MLS Number11182227CategoryDifferentials, Rear Last Updated6/13/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 7 Photos View 0 Videos Dana-Spicer R46-170H Rear Differential for a 2016 Kenworth T800 Contact for price Spicer Dana R46-170H Rear Rears Differential Assembly 4.30 Ratio - Capacity: 23,000 lbs. - Used - May have some cosmetic blemishes (see photos). Got questions or need more information? Give... ConditionUsedRear End4.30 ratioFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2016Stock NumberKW-0793-20 MLS Number12195293CategoryDifferentials, Rear Last Updated6/13/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info