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Used 2020 GMC Sierra Denali 2500 Rear Axle assembly, 3.42 axle ratio - representative image
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Check your VIN and the listed specifications before ordering.

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Used 2020 GMC Sierra Denali 2500 Rear Axle – 3.42 Ratio

Fitment: 3.42 Ratio ( Opt GU6 )
Mileage: 41760 miles
Vendor
GMC
Regular price
$3,250.00
Sale price
$3,250.00
Regular price
$4,062.00
Sold out
Unit price
per 
1-Year Warranty
  • Free shipping Nationwide delivery
  • Tax included In the listed price
  • Keep your old part No core return required

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Quality used OEM axle assembly

Used 2020 GMC Sierra Denali 2500 Rear Axle – 3.42 Ratio

Choose a used OEM rear axle assembly based on the correct specifications for your 2020 GMC Sierra Denali 2500. This individual listing carries a excellent condition grade and the axle-option details needed for fitment review.

The correct differential and axle configuration matter.

1-Year Parts WarrantyOur standard warranty terms apply 41,760 milesMileage for this axle

Product specifications

Vehicle application 2020 GMC Sierra Denali 2500
Part Used Rear Axle
Axle fitment / option 3.42 Ratio ( Opt GU6 )
Axle ratio 3.42:1
Donor vehicle 2024 SILVERADO 2500 PICKUP
Mileage 41,760 miles
Condition Excellent
Inventory reference 3851391
Supply location Fredericksburg, VA
Warranty 1-Year Parts Warranty (standard coverage terms apply)

What makes this unit a good fit?

  • A vehicle-specific used rear axle option for 2020 GMC Sierra Denali 2500.
  • Axle fitment notes: 3.42 Ratio ( Opt GU6 ).
  • Identified as an individual excellent-condition stock entry.
  • Our standard 1-year parts warranty, subject to the applicable terms and exclusions.

Mechanic’s fitment and installation note

Match the axle ratio, differential type, drivetrain, mounting points, hubs, brakes and electrical connectors where applicable. Use the vehicle VIN and OEM interchange details to select the correct assembly before installation.

Need help confirming compatibility? Send our parts team your vehicle year, make, model, VIN and the inventory reference above. We can help review the axle options and fitment details before you order.

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