435-281AP
435-281AP
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23119772 Rear Remanufactured GM 11.5" Differential — 3.73 Ratio, Posi-Traction — 2011–2014 Chevy Silverado 3500 HD & GMC Sierra 3500 HD Cab & Chassis Dual Wheel

SKU
435-281AP
Price
$3,425.00
Core Charge
$1,500.00
Base Add-Ons
Differential Add-Ons
Warranty (Select One)
Features and Benefits
Professionally remanufactured GM 11.5" rear differential restores OEM axle function and load capacity to heavy-duty Cab & Chassis dual-wheel applications.
Factory 3.73 gear ratio matches original drivetrain calibration, preserving towing capacity, throttle response, and powertrain harmony on matched applications.
Posi-Traction limited-slip functionality is retained, delivering improved traction and reduced wheel spin under load — critical for commercial and fleet duty cycles.
Steel and iron construction with black paint finish provides the structural integrity and corrosion resistance required by commercial vehicle service environments.
Manufactured in the United States and engineered to meet or exceed OEM specifications — a reliable choice for fleet managers and shop owners who cannot afford a repeat repair.
US Powertrain reviews each product for OEM design flaws and applies engineering improvements during remanufacturing, delivering a differential that can outperform the original.
Brand: US Powertrain

OEM Replacement GM 11.5 inch, 3.73 ratio, Anti-spin differential
2011-2014 Chevrolet Silverado 3500 HD, 2011-2014 GMC Sierra 3500 HD, 2011-2013 Chevrolet Silverado 3500 Chassis Cab without wide track
Differential
Dual wheel and chassis cab applications, this WILL NOT fit pickup applicatiions
Axle Type: Dual Wheel Rear Differential
Cover Bolt Quantity: 14
Gear Ratio: 3.73
Mounting Hardware Included: No
Ring Gear Outside Diameter: 11.5 Inch
with Dual Wheels, with Posi-Traction

Warranty Time: 1 Months

Interchange:

  • Genuine GM Parts: 22751994

Applications:

  • 2011-2014 Chevrolet Silverado 3500 HD - PartType: Differential - Position: Rear
  • 2011-2014 GMC Sierra 3500 HD - PartType: Differential - Position: Rear
  • 2011-2013 Chevrolet Silverado 3500 - PartType: Differential - Position: Rear
Installation Instructions
INS_FORM.docx (171.9 KB)
Warranty
US POWERTRAIN standard warranty for cars and light truck up to and including 1 ton is 36 months/36,000 miles. All commercial, farm and larger than 1-ton trucks is 12 months/18,000 miles from original date of purchase. This is a general warranty statement and not to be construed as a complete warranty. There is NO warranty on vehicles modified from stock.
Core Charge
$1,500.00
Dimensions
60 × 40 × 24 in
Weight
375 lb
Vehicle Fitment
2011 Chevrolet Silverado 3500 HD
2011 GMC Sierra 3500 HD
2012 Chevrolet Silverado 3500 HD
2012 GMC Sierra 3500 HD
2013 Chevrolet Silverado 3500 HD
2013 GMC Sierra 3500 HD
2011 Chevrolet Silverado 3500
2012 Chevrolet Silverado 3500
2013 Chevrolet Silverado 3500
2014 Chevrolet Silverado 3500 HD
2014 GMC Sierra 3500 HD
Fitment Qualifiers
with Posi-Traction
with Dual Wheels
Except Wide Track Axle
with 3.73 Axle Ratio
with 11.5in Ring Gear
Application Summary
2011-2013 Chevrolet Silverado 3500 Cab & Chassis - Dual Rear Wheels, Posi-Traction
2011-2014 Chevrolet Silverado 3500 HD Cab & Chassis - Dual Rear Wheels, Posi-Traction
2011-2014 GMC Sierra 3500 HD Cab & Chassis - Dual Rear Wheels, Posi-Traction
Category
Driveline and Axles
Differential
Part Type
Differential
Brand
US Powertrain
Color
Black
Finish
Black Paint
Material
Steel/Iron
Axle Type
GM 11.5"
Position
Rear
Cover Bolt Quantity
14
Cover Included
Yes
Gear Ratio
3.73
Grade Type
Remanufactured
Housing Bolt Quantity
14
Mounting Hardware Included
No
Prop 65 - Long Label
This product may contain a chemical known to the state of California to cause cancer or birth defects. www.p65warnings.ca.gov
Prop 65 - Short Label
WARNING: Cancer – www.p65warnings.ca.gov
Prop 65 Y/N
Yes
Ring Gear Outside Diameter
11.5