4 0 Rockwell RS21230 Rear Differential for a Rockwell RS-21-230 Recently Updated $1,350 USD Good used Rockwell RS-21-230 2 speed rear, rear differential assembly. 5.86/8.15 ratio. 90 day guarantee for swap or refund ConditionUsedFits To Make(s)ROCKWELLFits To Model(s)RS-21-230Stock NumberRyd RS-21-230/5.86- MLS Number13478979CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell SUDD Rear Differential Recently Updated $1,100 USD Good used Rockwell SUDD rear, rear differential assembly. 6.38 ratio. 90 day guarantee for swap or refund ConditionUsedRear End6.38 ratioFits To Make(s)ROCKWELLFits To Model(s)SUDDStock NumberRyd SUDD/6.38/46 MLS Number13426327CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS17144 Rear Differential for a Rockwell RS-17-144 Recently Updated $500 USD Good used Rockwell RS-17-144 rear, rear differential assembly with parking brake. 3.90 ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.90 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-17-144Stock NumberRyd RS-17-144/3.90/ MLS Number13235499CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-20-145 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-20-145 full locking rear, rear differential assembly. 4.11 ratio. 90 day guarantee for swap or refund Quantity3ConditionUsedRear End4.11 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-20-145Stock NumberRyd RSL-20-145/4.11 MLS Number13235498CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS20145 Rear Differential for a Rockwell RS-20-145 Recently Updated $500 USD Good used Rockwell RS-20-145 rear, rear differential assembly. 3.07 Ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.07 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-20-145Stock NumberRyd RS-20145/3.07/4 MLS Number13191714CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-20-145 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-20-145 full locking rear, rear differential assembly. 3.55 ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.55 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-20-145Stock NumberRyd RSL-20-145/3.55 MLS Number13140254CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS19145 Rear Differential for a Rockwell RS-19-145 Recently Updated $500 USD Good used Rockwell RS-19-145 rear, rear differential assembly. 5.29 ratio. 90 day guarantee for swap or refund ConditionUsedRear End5.29 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-19-145Stock NumberRyd RS19-145/5,29/4 MLS Number12979105CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS19145 Rear Differential for a Rockwell RS-19-145 Recently Updated $500 USD Good used Rockwell RS-19-145 rear, rear differential assembly. 4.10 ratio 90 day gurantee for swap or refund. ConditionUsedRear End4.10 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-19-145Stock NumberRyd RS-19-145/4.10/ MLS Number12662470CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-20-145 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-20-145 rear, rear differential assembly. 3.25 ratio 90 Day guarantee for swap or refund. ConditionUsedRear End3.25 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-20-145Stock NumberRyd RSL-20-145/3.25 MLS Number12567669CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS17145 Rear Differential for a Rockwell RS-17-145 Recently Updated $500 USD Good used inspected Rockwell RS-17-145 rear, rear differential assembly. 5.57 ratio 90 day gurantee for swap or refund ConditionUsedRear End5.57 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-17-145Stock NumberRyd RS-17-145/5.57/ MLS Number12537314CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell R140 Rear Differential Recently Updated $600 USD Good used Rockwell R140 rear, rear differential assemlby. Ratio: 4.11 90 day guarantee for swap or refund ConditionUsedRear End4.11 ratioFits To Make(s)ROCKWELLFits To Model(s)R140Stock NumberRyd R140/4.11/24 MLS Number11881483CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS17145 Rear Differential for a Rockwell RS-17-145 Recently Updated $500 USD Good used Rockwell RS-17145 rear, rear differential assembly. 4.11 ratio 90 day guarantee for swap or refund Quantity2ConditionUsedRear End4.11 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-17-145Stock NumberRyd RS-17145/4.11/3 MLS Number11802792CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell U-240 Rear Differential Recently Updated $950 USD Good used Rockwell U-240 rear, rear differential assembly. 7.03 ratio. 90 day guarantee for swap or refund ConditionUsedRear End7.03 ratioFits To Make(s)ROCKWELLFits To Model(s)U-240Stock NumberRyd U-240/7.03/24 MLS Number11735857CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell SSHR Rear Differential Recently Updated $1,100 USD Good used Rockwell SSHR rear, rear differential assembly. 5.29 ratio 90 day guarantee for swap or refund ConditionUsedRear End5.29 ratioFits To Make(s)ROCKWELLFits To Model(s)SSHRStock NumberRyd SSHR/5.29/16 MLS Number11735856CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS13120 Rear Differential for a Rockwell RS-13-120 Recently Updated $600 USD Good used Rockwell RS-13-120 rear, rear differential assembly. 3.31 ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.31 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-13-120Stock NumberRyd RS-13-120/3.31/ MLS Number11710275CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell 186E Rear Differential Recently Updated $600 USD Good used Rockwell 186E locking rear, rear differential assembly. 3.21 ratio. 90 day guarantee for swap or refund ConditionUsedRear End3.21 ratioFits To Make(s)ROCKWELLFits To Model(s)186EStock NumberRyd 186E/3.21/46 MLS Number11495466CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-23-160 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-23-160 Rear, Rear Differential Assembly. 3.73 ratio. 90 day guarantee for swap or refund. Quantity2ConditionUsedRear End3.73 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-23-160Stock NumberRyd RSL-23-160/3.73 MLS Number11436501CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS20145 Rear Differential for a Rockwell RS-20-145 Recently Updated $500 USD Good used Rockwell RS-20-145 rear, rear differential assembly. 5.86 ratio. 90 day guarantee for swap or refund Quantity2ConditionUsedRear End5.86 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-20-145Stock NumberRyd RS-20-145/5.86/ MLS Number11410847CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell R-170 Rear Differential Recently Updated $600 USD Good used Rockwell R-170 rear, rear differential assembly. 4.63 ratio. 90 day guarantee for swap or refund ConditionUsedRear End4.63 ratioFits To Make(s)ROCKWELLFits To Model(s)R-170Stock NumberRyd R-170/4.63/24 MLS Number11387188CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-23-180 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-23-180 full locking rear, rear differential assembly. 2.93 ratio. 90 day guarantee for swap or refund ConditionUsedRear End2.93 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-23-180Stock NumberRyd RSL-23-180/2.93 MLS Number13534987CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-23-180 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-23-180 locking rear, rear differential assembly. 3.07 ratio. 90 day guarantee for swap or refund Quantity2ConditionUsedRear End3.07 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-23-180Stock NumberRyd RSL-23-180/3.07 MLS Number11387160CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-20-145 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-20-145 full locking rear, rear differential assembly. 5.57 ratio. 90 day guarantee for swap or refund ConditionUsedRear End5.57 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-20-145Stock NumberRyd RSL-20-145/5.57 MLS Number12517972CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RSL-23-160 Rear Differential Recently Updated $750 USD Good used Rockwell RSL-23-160 full locking rear, rear differential assembly. 3.42 ratio. 90 day guarantee for swap or refund Quantity3ConditionUsedRear End3.42 ratioFits To Make(s)ROCKWELLFits To Model(s)RSL-23-160Stock NumberRyd RSL-23-160/3.42 MLS Number12018472CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell RS17144 Rear Differential for a Rockwell RS-17-144 Recently Updated $500 USD Good used Rockwell RS-17-144 rear, rear differential assembly. 6.43 ratio. 90 day guarantee for swap or refund ConditionUsedRear End6.43 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-17-144Stock NumberRyd RS-17-144/6.43/ MLS Number11999589CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 Rockwell R-170 Rear Differential Recently Updated $600 USD Good used Rockwell R-170 rear, rear differential assembly. 4.33 ratio. 90 day guarantee for swap or refund ConditionUsedRear End4.33 ratioFits To Make(s)ROCKWELLFits To Model(s)R-170Stock NumberRyd R-170/4.33/24 MLS Number11999585CategoryDifferentials, Rear Last Updated1/1/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info