View 1 Photo View 0 Videos Meritor-Rockwell 3.90 Gear Set fits SQ100/SL100 Rear Rear, Part # A38520-1 $445.77 USD 3.90 gear set fits sq100 sl100 rear rear ConditionNewPart Numbera38520-1Stock Numbera38520-1 MLS Number9002779CategoryDifferential Misc. Parts Last Updated3/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell 4.10 Gear Set for SQ100/SL100 Rear Rear, Part # A38730-1 / A38731-1R $370 USD 4.10 gear set fits sq100 sl100 rear rear ConditionNewPart Numbera38730-1 A38731-1RStock Numbera38730-1 MLS Number9002777CategoryDifferential Misc. Parts Last Updated3/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 3.42 Ring and Pinion, Part # A39424-1R $522.84 USD QR100 3.42 RING AND PINION, Serial#: 3.42, Core Charge: EXCHANGE, Casting#: 342 ConditionNewPart NumberA39424-1RStock NumberA39424-1 MLS Number12924240CategoryDifferential Misc. Parts Last Updated3/28/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell 3.55 Gear Set for SQ100/SL100 Rear Rear, Part # A37326-1 $421.34 USD 3.55 gear set fits sq100 sl100 rear rear ConditionNewPart Numbera37326-1Stock Numbera37326 MLS Number9003881CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 3.55 Gearset, Serial # A37326-1 $275 USD QR100 3.55 USED GEARSET, Serial#: A37326-1, Core Charge: N/A, Casting#: A37326-1 ConditionUsedPart NumberA37326-1Stock NumberA37326-1 USED MLS Number10889047CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 6.83 Ratio Differential, 41 Spline $895 USD INSPECTED T.O. QR100 6.83 RATIO 90 DAY WARRANTY - Differential Make: Meritor/Rockwell - Differential Model: QR100, Axle Spline Count: 41, Serial#: 6.83, Core Charge: CALL, Ratio: 6.83 ConditionUsedPart NumberQR100 6.83Stock Number11511R MLS Number10028737CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 Differential Part, Part # QR100 5.29 $495 USD INSPECTED T.O. 90 DAY WARRANTY - Differential Make: Meritor/Rockwell - Differential Model: QR100, Axle Spline Count: 41, Serial#: 5.29, Core Charge: CALL, Ratio: 5.29 ConditionUsedPart NumberQR100 5.29Stock Number73955 MLS Number10028728CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell Bearing Kit QR100, Part # DRK194RB FDRK194RB $303.30 USD bearing kit qr100, Serial#: 194rb, Core Charge: N/A, Casting#: 194rb Quantity4ConditionNewPart Numberdrk194rb fdrk194rbStock Numberdrk194rb MLS Number9003220CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 Rear Rear Pinion Seal, Part # 3905 / 30145 $44.06 USD QR100 REAR REAR PINION SEAL, Serial#: 3905`, Core Charge: N/A, Casting#: 3905 Quantity6ConditionNewPart Number3905 / 30145Stock Number3905 MLS Number9005234CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell QR100 4.44 Rear Gearset, Part # A37564-1 $325 USD 4.44 rear gearset ConditionUsedPart Numbera37564-1Stock Numbera37564-1 MLS Number9002773CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Meritor-Rockwell Rear Gear Set 4.88 Ratio Fits QR100 and LR100 $430.84 USD rear gear set 4.88 ratio fits QR100 and LR100 ConditionNewStock NumberA37392-1 MLS Number9459606CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Meritor-Rockwell QR100 5.29 Rear Gearset, Part # A37376-1 $315 USD 5.29 rear gearset ConditionUsedPart Numbera37376-1Stock Numbera37376-1 MLS Number9002771CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Meritor-Rockwell QR100 3.70 Rear Gearset, Part # A38512-1 $365 USD 3.70 rear gearset Quantity3ConditionUsedPart Numbera38512-1Stock Numbera38512-1 MLS Number9002782CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Meritor-Rockwell QR100 3.73 Rear Gearset, Part # A39168-1 $351 USD 3.73 rear gearset ConditionUsedPart Numbera39168-1Stock Numbera39168-1 MLS Number9002781CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 0 Photos View 0 Videos Meritor-Rockwell QR100 4.33 Rear Gearset, Part # A37382-1 $300 USD 4.33 rear gearset ConditionUsedPart Numbera37382-1Stock Numbera37382-1 MLS Number9002775CategoryDifferential Misc. Parts Last Updated4/3/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info