4 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 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)RS-21-145Stock NumberRyd RS-21-145/4.63/ MLS Number11424959CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 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)RS-21-145Stock NumberRyd RS-21-145/5.57/ MLS Number10643517CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 rear, rear differential assembly. 3.58 ratio. 90 day guarantee for swap or refund Quantity-1ConditionUsedRear End3.58 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-21-145Stock NumberRyd RS-21-145/3.58/ MLS Number10568084CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 rear, rear differential assembly. 4.88 ratio. 90 day guarantee for swap or refund ConditionUsedRear End4.88 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-21-145Stock NumberRyd RS-21-145/4.88/ MLS Number10643330CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 rear, rear differential assembly. 5.86 ratio. 90 day guarantee for swap or refund ConditionUsedRear End5.86 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-21-145Stock NumberRyd RS-21-145/5.86/ MLS Number11121773CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 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-21-145Stock NumberRyd RS-21-145/4.11/ MLS Number10524900CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential for a Rockwell RS-21-145 $600 USD Good used Rockwell RS-21-145 rear, rear differential assembly. 5.29 ratio. 90 day guarantee for swap or refund Quantity2ConditionUsedRear End5.29 ratioFits To Make(s)ROCKWELLFits To Model(s)RS-21-145Stock NumberRyd RS-21-145/5.29/ MLS Number10310485CategoryDifferentials, Rear Last Updated7/30/2025 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
4 0 2005 Rockwell RS21145 Rear Differential $455 USD 6 Month Warranty,RS21-145 ,4.88,1610,NOTES,T10, ************PUSHER APP ONLY**************** 39 SPLINE SIDE GEARS 3200-R-1864 ConditionUsedStock NumberR05787328 MLS Number13092966CategoryDifferentials, Rear Last Updated9/5/2024 LocationSpokane Valley, WA, US Sold BySpalding Truck Parts (833) 432-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 2004 Rockwell RS21145 Rear Differential $450 USD 6 Month Warranty,RS21145,4.11,NOYK,T6, SAME AS RR20-145 ConditionUsedStock NumberR05337725 MLS Number13092947CategoryDifferentials, Rear Last Updated9/5/2024 LocationSpokane Valley, WA, US Sold BySpalding Truck Parts (833) 432-___ SHOWNUMBERCall Seller Email Seller Save More Info
2 0 Rockwell RS21145 Rear Differential for a Ford F750 $1,250 USD ROCKWELL REAR REAR, MOD: RS21145, SN AVA97065348, RATIO: 5.13 ConditionUsedFits To Make(s)FordFits To Model(s)F750Stock Number47916 MLS Number11137662CategoryDifferentials, Rear Last Updated12/13/2021 LocationOil City, LA, US Sold ByBobby Johnson Equipment Co., Inc. (855) 946-___ SHOWNUMBERCall Seller Email Seller Save More Info
1 0 Rockwell RS21145 Rear Differential Contact for price ROCKWELL RS21145 HIGH TRACTION DIFFERENTIAL RATIO 5.86 ConditionUsedStock Number1381169 MLS Number10895682CategoryDifferentials, Rear Last Updated8/5/2021 LocationEnfield, CT, US Sold ByCamerota Truck Parts (855) 750-___ SHOWNUMBERCall Seller Email Seller Save More Info