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GM 20920666 Rear Axle Shaft

2011-2019 GM

Customer Questions & Expert Answers (3)
20920666 GM Rear Axle Shaft Illustration 1 of 1
  • Part Description
    Shaft, Rear Axle ; Shaft, Rear Axle Drive
  • Position
    Rear
  • Manufacturer
    General Motors
Make sure this part fits
$214.60 MSRP: $336.76
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Currently Unavailable

Due to manufacturer supply shortage, this item isn't currently available for ordering.

  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number20920666
    Part DescriptionShaft, Rear Axle ; Shaft, Rear Axle Drive
    Other NamesAxle Shaft
    Item Dimensions41.3 x 5.1 x 5.0 inches
    Item Weight14.60 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU20920666
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2011-2019 Chevrolet Silverado8 Cyl 6.0L, 8 Cyl 6.0L Flex2500 CREW CAB STANDARD BOX, 2500 REGULAR (CAB ONLY), 2500 REGULAR CAB, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, REGULAR CAB 3/4 TON
    2016-2019 Chevrolet Suburban8 Cyl 6.0L Flex3500 4 DOOR UTILITY
    2011-2019 GMC Sierra8 Cyl 6.0L, 8 Cyl 6.0L Flex2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, REGULAR CAB 3/4 TON
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 20920666 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    How is power transmitted from the front differential/Axle Shaft to the front wheels for the 2012 GMC Sierra? Posted by Cheng P.
    A:
    Power is transmitted through a pair of driveaxles equipped with sliding constant velocity (CV) joints capable of both angular and axial motion. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Nov 01, 2025
    Q:
    Is there an optional feature available for the rear axle assembly, including the Axle Shaft, for the 2013 Chevrolet Silverado? Posted by Ivy N.
    A:
    Yes, there is an optional locking limited-slip rear axle available. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Mar 05, 2023

Genuine GM Part 20920666, the Right Choice

To ensure reliability, purchase GM part # 20920666 Rear Axle Shaft. It is sometimes referred to as GM Axle Shaft. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Chevrolet Silverado, Suburban models. It fits GMC Sierra.

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