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GMC 20937806 Axle Assembly, Rear (3.08 Ratio)

2010-2013 GMC Sierra

Customer Questions & Expert Answers (13)
GM 20937806 Axle Assembly, Rear (3.08 Ratio)
  • Part Description
    AXLE, Rear Axle
  • Position
    Rear
  • Replaces
    20832067
  • Manufacturer
    General Motors
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  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number20937806
    Part DescriptionAXLE, Rear Axle
    Item Dimensions75.0 x 21.8 x 18.5 inches
    Item Weight141.90 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces20832067
    ManufacturerGeneral Motors
    SKU20937806
    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
    2010-2013 GMC Sierra6 Cyl 4.3L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L Flex, 8 Cyl 6.2L FlexEXTENDED CAB 6'6" BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 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. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 20937806 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How do you install the semi-floating axle shaft for the 2012 Chevrolet Silverado? Posted by Customer
    A:
    To install the semi-floating axle shaft, you should insert the axleshaft into the housing until it engages with the differential side gear, install the C-lock, and insert the pinion shaft. Then, install the cover, fill the differential with lubricant, and install the brake disc or drum.
    Posted by GMPartsGiant Specialist
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    Q:
    How should the rear axle assembly be installed for the 2013 Chevrolet Silverado? Posted by Customer
    A:
    To install the rear axle assembly, the reverse order of removal should be followed. All suspension and brake fasteners should be tightened to the torque value specifications.
    Posted by GMPartsGiant Specialist
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    Q:
    What type of front axle assembly is used in the 2009 Chevrolet Silverado? Posted by Customer
    A:
    4WD models use a fully independent front axle assembly.
    Posted by GMPartsGiant Specialist
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    Q:
    How do you install the semi-floating axle shaft for the 2009 GMC Sierra? Posted by Customer
    A:
    To install the semi-floating axle shaft, you should insert the axleshaft into the housing until it engages with the differential side gear, install the C-lock, and insert the pinion shaft. Then, install the cover, fill the differential with lubricant, and install the brake disc or drum.
    Posted by GMPartsGiant Specialist
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    Q:
    How is power transmitted from the front differential/axle to the front wheels for the 2009 GMC Sierra? Posted by Customer
    A:
    Power is transmitted through a pair of driveaxles equipped with sliding constant velocity (CV) joints capable of both angular and axial motion.
    Posted by GMPartsGiant Specialist
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    Q:
    What should be done before installing the driveaxle for the 2007 Chevrolet Silverado? Posted by Customer
    A:
    Before installing the driveaxle, the splines on the stub shaft should be lubricated with multi-purpose grease.
    Posted by GMPartsGiant Specialist
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    Q:
    What type of CV joints are equipped on the outer ends of the driveaxles for the 2007 Chevrolet Silverado? Posted by Customer
    A:
    The outer ends of the driveaxles are equipped with ball-and-cage type CV joints capable of angular but not axial movement.
    Posted by GMPartsGiant Specialist
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    Q:
    What are the initial steps to remove and install components in the front differential of selectable 4WD systems for the 2007 Chevrolet Silverado? Posted by Customer
    A:
    The initial steps to remove and install components in the front differential of selectable 4WD systems are as follows: Loosen the wheel lug nuts. Raise the vehicle securely on jackstands. Remove the right front wheel. Remove the differential carrier splash shield if equipped. Drain the lubricant from the front differential. For 4WD systems, unbolt the right driveaxle from the axleshaft flange and support it out of the way. Remove the front axle shift motor and, if applicable, disconnect the front stabilizer link or remove the front shock absorber/coil spring assembly. On 2500/3500 models, remove the front axle bracket bolts and slide the bracket forward for additional clearance. Support the differential carrier with a floor jack and a block of wood.
    Posted by GMPartsGiant Specialist
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    Q:
    How should the driveaxle/hub nut and flange bolts be tightened during installation for the 2008 GMC Sierra? Posted by Customer
    A:
    The driveaxle/hub nut (new) and the flange bolts should be tightened to the torque values specifications during installation.
    Posted by GMPartsGiant Specialist
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    Q:
    What does the differential in the rear axle assembly allow for the 2012 GMC Sierra? Posted by Customer
    A:
    The differential allows the outer rear wheel to turn at a higher speed than the inner tire when going around a corner.
    Posted by GMPartsGiant Specialist
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    Q:
    What steps should be followed for the 2010 GMC Sierra? Posted by Customer
    A:
    For coil spring models, the links for the electronic suspension control sensors should be detached, followed by detaching the track bar from the rear axle. The stabilizer bar, coil springs, and upper and lower trailing arms should be disconnected from the axle assembly. Finally, the jack can be lowered under the differential to remove the rear axle assembly.
    Posted by GMPartsGiant Specialist
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    Q:
    How do you remove and install components in the front differential for 4WD systems for the 2010 GMC Sierra? Posted by Customer
    A:
    To remove and install components in the front differential for 4WD systems, follow these steps: Remove the bolts securing the axle tube to the differential carrier and the nuts attaching the tube to its support bracket. Carefully remove the output shaft tube, ensuring no components fall out. Mount the tube in a vise and remove the internal components. Measure and remove the axleshaft bearing using a slide hammer and bearing remover attachment. For installation, install the bearing to the original depth using a bearing driver or socket, then install a new seal and deflector, lubricating the seal lips with grease. Carefully drive in the axleshaft, followed by the internal components. Apply RTV sealant to the tube-to-differential housing mating surface, and install the tube assembly, tightening bolts and nuts to specified torques. Reinstall the driveaxle, front axle shift motor, and fill the differential with lubricant.
    Posted by GMPartsGiant Specialist
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    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 20937806, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 20937806 Axle Assembly, Rear (3.08 Ratio). It is sometimes referred to as GMC Axle Shaft. Our GM parts and accessories are expedited directly from authorized GM dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM GM parts are the best for restoring your vehicle to factory condition performance. This part fits specific GMC Sierra models.

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