View 0 Photos View 0 Videos 2013 Axle Alliance RS21.0-4 Rear Differential for a Freightliner M2 106 $945 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Stock Number26015649 MLS Number14429186CategoryDifferentials, Rear Last Updated6/14/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART400-4S Rear Differential for a 2021 Freightliner Cascadia 126 $1,995 USD DART400 RR LOCKER 3.08 RATIO WILL INSPECT. 90 DAY WARRANTY., Ratio: 3.08 ConditionUsedRear End3.08 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2021Stock Number52426-2 MLS Number14424902CategoryDifferentials, Rear Last Updated6/23/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2007 Axle Alliance RS15.0-2 Rear Differential for a Freightliner MT $850 USD (USED) Alliance Axle RS15.0-2 Ratio: 4.10 Side Gear Splines: 38 W/ Locker: NO Cast#: R6803510205 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)MTStock Number26013570 MLS Number14421185CategoryDifferentials, Rear Last Updated6/12/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2018 Axle Alliance RT40.0-4 Rear Differential for a Freightliner Cascadia $450 USD (USED) Alliance Axle RT40.0-4 Ratio: 2.41 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813510805 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)CASCADIAStock Number25990865 MLS Number14357561CategoryDifferentials, Rear Last Updated5/24/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2006 Axle Alliance RS21.0-4 Rear Differential for a Sterling Acterra $945 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.22 Side Gear Splines: 41 W/ Locker: NO Cast#: R6813511005 ConditionUsedFits To Make(s)SterlingFits To Model(s)ACTERRAStock Number25934477 MLS Number14228256CategoryDifferentials, Rear Last Updated5/20/2026 LocationCouncil Bluffs, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2009 Axle Alliance RS19.0-2 Rear Differential for a Sterling Acterra $908 USD (USED) Alliance Axle RS19.0-2 Ratio: 3.91 Side Gear Splines: 38 W/ Locker: NO Cast#: R6803510205 Ref# NO TAG ConditionUsedFits To Make(s)SterlingFits To Model(s)ActerraPart NumberNO TAGStock Number25998439 MLS Number14375494CategoryDifferentials, Rear Last Updated5/17/2026 LocationDes Moines, IA, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2016 Axle Alliance RS21.0-4 Rear Differential for a Freightliner M2 106 $908 USD (USED) Alliance Axle RS21.0-4 Ratio: 5.56 Side Gear Splines: 46 W/ Locker: YES Cast#: R6813511105 ConditionUsedFits To Make(s)FreightlinerFits To Model(s)M2 106Stock Number25893266 MLS Number13995107CategoryDifferentials, Rear Last Updated5/23/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4NR Rear Differential Contact for price RT40-4N Ratio:2.53, Ratio: 2.53 ConditionUsedRear End2.53 ratioStock NumberATC2452 MLS Number13568076CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4N Rear Differential Contact for price RT40-4N Ratio:2.62, Ratio: 2.62 ConditionUsedRear End2.62 ratioStock NumberATC2446 MLS Number13565458CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-04 Rear Differential Contact for price RT40-04 Ratio:3.08 With locker, Ratio: 3.08 ConditionUsedRear End3.08 ratioStock NumberATC2415 MLS Number13463511CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4NR Rear Differential Contact for price RT40-4NR with locker Ratio:3.23, Ratio: 3.23 ConditionUsedRear End3.23 ratioStock NumberATC2400 MLS Number13395327CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4N Rear Differential Contact for price RT40-4N Ratio:3.23, Ratio: 3.23 ConditionUsedRear End3.23 ratioStock NumberATC2260 MLS Number13000151CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance Rear Differential Contact for price RT40-NFD Ratio:2.64, Ratio: 2.64 ConditionUsedRear End2.64 ratioStock NumberATC2256 MLS Number13000147CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4NR Rear Differential Contact for price NEW STYLE alliance RT40-4NR Ratio:2.85, Ratio: 2.85 ConditionUsedRear End2.85 ratioStock NumberATC2198 MLS Number12727494CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40.0-4 Rear Differential Contact for price RT40-04 Ratio:2.42, Ratio: 2.42 ConditionUsedRear End2.42 ratioStock NumberATC2176 MLS Number12556430CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40.0-4 Rear Differential Contact for price RT40-04 Ratio:2.57, Ratio: 2.57 ConditionUsedRear End2.57 ratioStock NumberATC2158 MLS Number12512277CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40.0-4 Rear Differential for a 2020 Freightliner Cascadia 126 Contact for price RT40-04, Ratio: 2.85 ConditionUsedRear End2.85 ratioFits To Make(s)FreightlinerFits To Model(s)Cascadia 126Will Fit Year(s)2020Stock NumberSV-1061-2 MLS Number12442958CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40.0-4 Rear Differential Contact for price RT40-04 with 77K miles Ratio:2.28, Ratio: 2.28 ConditionUsedRear End2.28 ratioStock NumberATC2140 MLS Number12391606CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART-40 Rear Differential Contact for price ART40 Ratio:5.22, Ratio: 5.22 ConditionUsedRear End5.22 ratioStock NumberATC2021 MLS Number11899967CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART-40 Rear Differential Contact for price ART-40 Ratio:2.41, Ratio: 2.41 ConditionUsedRear End2.41 ratioStock NumberATC1936 MLS Number11599377CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance RT40-4N Rear Differential Contact for price RT40-4N Ratio:3.33, Ratio: 3.33 ConditionUsedRear End3.33 ratioStock NumberATC1786 MLS Number11346400CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART-40 Rear Differential Contact for price RT40-4 3.73, Ratio: 3.73 ConditionUsedRear End3.73 ratioStock Number396-23063065 MLS Number9404472CategoryDifferentials, Rear Last Updated5/14/2026 LocationAlma, AR, US Sold ByArkansas Truck Center (833) 371-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART-40 Rear Differential for a 2006 Freightliner COLUMBIA Contact for price ABS, Ratio: 373 ConditionUsedRear End3.73 ratioFits To Make(s)FreightlinerFits To Model(s)COLUMBIAWill Fit Year(s)2006Stock NumberU21616-5 MLS Number9390844CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Axle Alliance ART-40 Rear Differential for a 2006 Freightliner CST120 CENTURY Contact for price -, Ratio: 342 ConditionUsedRear End3.42 ratioFits To Make(s)FreightlinerFits To Model(s)CST120 CENTURYWill Fit Year(s)2006Stock NumberW50678-5 MLS Number9389474CategoryDifferentials, Rear Last Updated5/14/2026 LocationFarr West, UT, US Sold ByRocky Mountain Truck Parts (855) 980-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos 2015 Axle Alliance RT40-4NR Rear Differential for a Freightliner Cascadia 125 $850 USD RT40-4NR - 3.30 Ratio Diff Only, Housing sold separately ConditionUsedRear End3.30 ratioFits To Make(s)FREIGHTLINERFits To Model(s)Cascadia 125Stock Number1768-4 MLS Number14251043CategoryDifferentials, Rear Last Updated5/8/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info