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Used 2020 GMC Sierra 2500 Hd 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 2500 Hd Rear Axle – 3.42 Ratio

Fitment: 3.42 Ratio ( Opt GU6 )
Mileage: 54000 miles
Vendor
GMC
Regular price
$2,550.00
Sale price
$2,550.00
Regular price
$3,187.00
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 2500 Hd Rear Axle – 3.42 Ratio

Choose a used OEM rear axle assembly based on the correct specifications for your 2020 GMC Sierra 2500 Hd. This individual listing carries a good 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 54,000 milesMileage for this axle

Product specifications

Vehicle application 2020 GMC Sierra 2500 Hd
Part Used Rear Axle
Axle fitment / option 3.42 Ratio ( Opt GU6 )
Axle ratio 3.42:1
Donor vehicle 2022 SILVERADO 2500 PICKUP
Mileage 54,000 miles
Condition Good
Inventory reference 79678
Supply location Somers, IA
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 2500 Hd.
  • Axle fitment notes: 3.42 Ratio ( Opt GU6 ).
  • Identified as an individual good-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.

Confirm This Part Fits Your Vehicle

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