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Eaton RS381 Axles & Differentials For Sale

Browse Eaton RS381 Axles & Differentials on MyLittleSalesman.com and compare listings with prices from $495 to $1,685. Sellers include Garabedian Equipment, Holst Truck Parts, and Rocky Mountain Truck Parts. Filter by condition, price, or year to quickly narrow down to the right Eaton RS381.
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   Axle Housings, Rear (2)    Differentials, Rear (10)
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Eaton RS381 Rear Differential for a 1983 Gm/Chev (Hd) GENERAL

Eaton RS381 Rear Differential for a 1983 Gm/Chev (Hd) GENERAL

$795 USD
RS381 3.70 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY EXCHANGE. CHECK S.G. COUNT, Axle Spline Count: GET, Core Charge: 250.00, Ratio: 3.70
ConditionUsed
Rear End3.70 ratio
Fits To Make(s)GM/Chev (HD)
Fits To Model(s)GENERAL
Will Fit Year(s)1983
Part NumberRS381
Stock Number92423-8
MLS Number12330391
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
Eaton RS381 Rear Differential for a 1978 GMC Brigadier

Eaton RS381 Rear Differential for a 1978 GMC Brigadier

$1,095 USD
RS380 RECONDITIONED 3.70. 1ST 6 MONTH PARTS AND LABOR WARRANTY. LAST 6 MONTH PARTS ONLY WARRANTY. EXTENDED WARRANTY AVAILABLE., Ratio: 3.70
ConditionRemanufactured
Rear End3.70 ratio
Fits To Make(s)GMC
Fits To Model(s)Brigadier
Will Fit Year(s)1978
Stock Number42923-8
MLS Number12027857
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
Eaton RS381 Rear Axle Housing for a 1983 Gm/Chev (Hd) GENERAL

Eaton RS381 Rear Axle Housing for a 1983 Gm/Chev (Hd) GENERAL

$1,295 USD
GOOD USED HOUSING ASSEMBLY/ RT380/400 T BAR TOP MOUNT. EATON 380/381/400/402, 10 BOLT SPYDER GM AND FORD ONLY, Serial#: NA, Hub Bolts: 10, Suspension: RT380, Brake Type: DRUM
ConditionUsed
Fits To Make(s)GM/Chev (HD)
Fits To Model(s)GENERAL
Will Fit Year(s)1983
Part NumberNA
Stock Number92423-5
MLS Number12330382
CategoryAxle Housings, Rear
Last Updated5/15/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
Eaton RS381 Rear Differential for a 1987 Freightliner FLC

Eaton RS381 Rear Differential for a 1987 Freightliner FLC

$795 USD
RS381 3.55 GOOD INSPECTED TAKEOUT. 90 DAY WARRANTY, Axle Spline Count: GET, Core Charge: 200.00, Ratio: 3.55
ConditionUsed
Rear End3.55 ratio
Fits To Make(s)Freightliner
Fits To Model(s)FLC
Will Fit Year(s)1987
Part NumberRS--381
Stock Number81222-8
MLS Number11538011
CategoryDifferentials, Rear
Last Updated6/13/2026
Location
Ucon, ID, US
Sold By
Holst Truck Parts
(833) 541-___  SHOW
NUMBERCall Seller
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Holst Truck Parts
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