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Rydemore Heavy Duty Truck Parts Rockwell Rear Differentials For Sale

Rydemore Heavy Duty Truck Parts
88 Benson St.
Fitchburg, MA 01420
United States
(888) 519-8914
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Differentials, Rear (161)
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Rockwell (161)
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Showing 1 - 25 of 161 Rear Differential Listings

1 - 25 of 161 listings
1 - 25 of 161 listings
Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

$500 USD
Good used Rockwell RS-19-145 rear, rear differential assembly with emergency brake. 4.11 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End4.11 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-19-145
Stock NumberRyd RS-19-145/4.11/
MLS Number14220470
CategoryDifferentials, Rear
Last Updated3/3/2026
Location
Fitchburg, MA, US
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Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

$500 USD
Good used Rockwell RS-21-145 rear, rear differential assembly. 5.29 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End5.29 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-21-145
Stock NumberRyd RS-21-145/5.29/
MLS Number10310485
CategoryDifferentials, Rear
Last Updated3/2/2026
Location
Fitchburg, MA, US
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Rockwell RS20145 Rear Differential for a Rockwell RS-20-145

Rockwell RS20145 Rear Differential for a Rockwell RS-20-145

$500 USD
Good used Rockwell RS-20-145 rear, rear differential assembly. 3.58 Ratio. 90 day guarantee for swap or refund,
Quantity2
ConditionUsed
Rear End3.58 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-20-145
Stock NumberRyd RS-20-145/3.58/
MLS Number10204618
CategoryDifferentials, Rear
Last Updated3/2/2026
Location
Fitchburg, MA, US
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Rockwell RSL-23-160 Rear Differential

Rockwell RSL-23-160 Rear Differential

$750 USD
Good used Rockwell RSL-23-160 full locking rear, rear differential assembly. 2.67 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End2.67 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RSL-23-160
Stock NumberRyd RSL-23160/2.67/
MLS Number14137008
CategoryDifferentials, Rear
Last Updated2/27/2026
Location
Fitchburg, MA, US
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Rockwell RS17144 Rear Differential for a Rockwell RS-17-144

Rockwell RS17144 Rear Differential for a Rockwell RS-17-144

$500 USD
Good used Rockwell RS-17-144 rear, rear differential assembly with parking brake. 5.57 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End5.57 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-17-144
Stock NumberRyd RS-17-144/5.57/
MLS Number14164847
CategoryDifferentials, Rear
Last Updated2/26/2026
Location
Fitchburg, MA, US
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Rockwell RS17145 Rear Differential for a Rockwell RS-17-145

Rockwell RS17145 Rear Differential for a Rockwell RS-17-145

$500 USD
Good used inspected Rockwell RS-17-145 rear, rear differential assembly. 4.63 ratio 90 day gurantee for swap or refund
ConditionUsed
Rear End4.63 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-17-145
Stock NumberRyd RS-17-145/4.63/
MLS Number14164844
CategoryDifferentials, Rear
Last Updated2/26/2026
Location
Fitchburg, MA, US
Sold By
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Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

$600 USD
Good used Rockwell RS-19-145 rear, rear differential assembly. 5.86 ratio 90 day gurantee for swap or refund.
Quantity2
ConditionUsed
Rear End5.86 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-19-145
Stock NumberRyd RS-19-145/5.86/
MLS Number14164833
CategoryDifferentials, Rear
Last Updated3/2/2026
Location
Fitchburg, MA, US
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Rockwell RS15120 Rear Differential for a Rockwell RS-15-120

Rockwell RS15120 Rear Differential for a Rockwell RS-15-120

$600 USD
Good used Rockwell RS-15-120 rear, rear differential assembly. 4.10 Ratio. 90 day guarantee for swap or refund,
ConditionUsed
Rear End4.10 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-15-120
Stock NumberRyd RS15-120/4.10/3
MLS Number10744547
CategoryDifferentials, Rear
Last Updated2/24/2026
Location
Fitchburg, MA, US
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Rockwell RS15120 Rear Differential for a Rockwell RS-15-120

Rockwell RS15120 Rear Differential for a Rockwell RS-15-120

$600 USD
Good used Rockwell RS-15-120 rear, rear differential assembly. 4.30 Ratio. 90 day guarantee for swap or refund,
ConditionUsed
Rear End4.30 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-15-120
Stock NumberRyd RS-15-120/4.30/
MLS Number12159544
CategoryDifferentials, Rear
Last Updated2/26/2026
Location
Fitchburg, MA, US
Sold By
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Rockwell RSL-20-145 Rear Differential

Rockwell RSL-20-145 Rear Differential

$750 USD
Good used Rockwell RSL-20-145 full locking rear, rear differential assembly. 3.42 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End3.42 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RSL-20-145
Stock NumberRyd RSL-20-145/3.42
MLS Number14137030
CategoryDifferentials, Rear
Last Updated2/11/2026
Location
Fitchburg, MA, US
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Rockwell RSL-23-160 Rear Differential

Rockwell RSL-23-160 Rear Differential

$750 USD
Good used Rockwell RSL-23-160 Rear, Rear Differential Assembly. 3.73 ratio. 90 day guarantee for swap or refund.
Quantity3
ConditionUsed
Rear End3.73 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RSL-23-160
Stock NumberRyd RSL-23-160/3.73
MLS Number11436501
CategoryDifferentials, Rear
Last Updated2/5/2026
Location
Fitchburg, MA, US
Sold By
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Rockwell RSL-20-145 Rear Differential

Rockwell RSL-20-145 Rear Differential

$750 USD
Good used Rockwell RSL-20-145 full locking rear, rear differential assembly. 4.33 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End4.33 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RSL-20-145
Stock NumberRyd RSL-20-145/4.33
MLS Number14123871
CategoryDifferentials, Rear
Last Updated2/4/2026
Location
Fitchburg, MA, US
Sold By
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Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

Rockwell RS19145 Rear Differential for a Rockwell RS-19-145

$600 USD
Good used Rockwell RS-19-145 rear, rear differential assembly. 4.11 ratio. 90 day guarantee for swap or refund
Quantity3
ConditionUsed
Rear End4.11 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-19-145
Stock NumberRyd RS-19-145/4.11/
MLS Number10524901
CategoryDifferentials, Rear
Last Updated2/4/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rockwell RS20145 Rear Differential for a Rockwell RS-20-145

Rockwell RS20145 Rear Differential for a Rockwell RS-20-145

$500 USD
Good used Rockwell RS-20-145 rear, rear differential assembly. 3.73 Ratio. 90 day guarantee for swap or refund
Quantity4
ConditionUsed
Rear End3.73 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-20-145
Stock NumberRyd RS-20-145/3.73/
MLS Number10204615
CategoryDifferentials, Rear
Last Updated2/4/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

$500 USD
Good used Rockwell RS-23-160 rear, rear differential assembly. 3.21 ratio. 90 day guarantee for swap or refund
Quantity3
ConditionUsed
Rear End3.21 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-23-160
Stock NumberRyd RS-23-160/3.21/
MLS Number10524867
CategoryDifferentials, Rear
Last Updated1/27/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

Rockwell RS23160 Rear Differential for a Rockwell RS-23-160

$1,000 USD
Good used Rockwell RS-23-160 rear, rear differential assembly. 4.89 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End4.89 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-23-160
Stock NumberRyd RS-23-160/4.89/
MLS Number10568090
CategoryDifferentials, Rear
Last Updated1/17/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

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
ConditionUsed
Rear End3.58 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-21-145
Stock NumberRyd RS-21-145/3.58/
MLS Number10568084
CategoryDifferentials, Rear
Last Updated1/15/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rydemore Heavy Duty Truck Parts
Rockwell RSL-23-160 Rear Differential

Rockwell RSL-23-160 Rear Differential

$850 USD
Good used Rockwell RSL-23-160 full locking rear, rear differential assembly. 3.21 ratio. 90 day guarantee for swap or refund
ConditionUsed
Rear End3.21 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RSL-23-160
Stock NumberRyd RSL-23160/3.21
MLS Number14085811
CategoryDifferentials, Rear
Last Updated1/13/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rydemore Heavy Duty Truck Parts
Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

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
Quantity2
ConditionUsed
Rear End4.63 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-21-145
Stock NumberRyd RS-21-145/4.63/
MLS Number11424959
CategoryDifferentials, Rear
Last Updated1/9/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rydemore Heavy Duty Truck Parts
Rockwell RS21145 Rear Differential for a Rockwell RS-21-145

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
Quantity2
ConditionUsed
Rear End5.57 ratio
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-21-145
Stock NumberRyd RS-21-145/5.57/
MLS Number10643517
CategoryDifferentials, Rear
Last Updated1/6/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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Rockwell RS21230 Rear Differential for a Rockwell RS-21-230

Rockwell RS21230 Rear Differential for a Rockwell RS-21-230

$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
ConditionUsed
Fits To Make(s)ROCKWELL
Fits To Model(s)RS-21-230
Stock NumberRyd RS-21-230/5.86-
MLS Number13478979
CategoryDifferentials, Rear
Last Updated1/1/2026
Location
Fitchburg, MA, US
Sold By
Rydemore Heavy Duty Truck Parts
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