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GM 25798178 AXLE

2009 GMC Sierra

GM 25798178 AXLE
  • Part Description
    AXLE, Rear Axle
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Customer Questions & Answers
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number25798178
    Part DescriptionAXLE, Rear Axle
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU25798178
    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
    2009 GMC Sierra6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.2L FlexCREW CAB 1/2 TON

Customer Questions & 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 25798178 fits your vehicle.
Posted by GMPartsGiant Specialist
Q:
How do you remove a full-floating axle shaft for the 2007 GMC Sierra? Posted by Customer
A:
To remove a full-floating axle shaft, you need to remove the bolts attaching the flange to the hub and withdraw the shaft from the housing.
Posted by GMPartsGiant Specialist
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Q:
What steps should be followed for the 2010 GMC Sierra? Posted by Customer
A:
For leaf spring models, the spring U-bolts should be disconnected, followed by removing the springplates. Then, the jack can be lowered under the differential to remove the rear axle assembly.
Posted by GMPartsGiant Specialist
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Q:
How are the inner ends of the driveaxles connected to the differential side gears for the 2010 GMC Sierra? Posted by Customer
A:
The inner ends of the driveaxles are bolted to an axleshaft connected to the differential side gears.
Posted by GMPartsGiant Specialist
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Q:
How do you remove and install components in the front differential for AWD systems for the 2008 GMC Yukon? Posted by Customer
A:
To remove and install components in the front differential for AWD systems, follow these steps: Remove the stabilizer bar link and, if applicable, the front shock absorber. Unbolt the right driveaxle from the axleshaft flange, supporting it properly. Support the differential carrier with a floor jack and a block of wood. Remove nuts attaching the axle shaft to its support bracket and the bolts securing the axle shaft flange to the differential carrier. Use a brass punch and hammer to separate the axle shaft from the differential case side gear. Remove the inner axle shaft assembly and axle shaft. Replace the inner seal and bearing with a special tool, then apply RTV sealant to the differential sealing surface and install the inner axle shaft housing assembly. Install the axle shaft to the support bracket and align the splines with the differential side gear. Tap the axle shaft with a mallet until the ring (clip) aligns with the groove in the differential case side gear. Install the axle shaft to the inner flange and tighten the bolts. Reinstall the stabilizer link, fill the differential with lubricant, install the differential carrier splash shield, and finally, install the wheel and lug nuts. Lower the vehicle, tighten the lug nuts, and check for proper operation.
Posted by GMPartsGiant Specialist
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Q:
What does the optional locking limited-slip rear axle do for the 2007 GMC Sierra? Posted by Customer
A:
The optional locking limited-slip rear axle slows the rotation of the differential case when one wheel loses traction.
Posted by GMPartsGiant Specialist
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Q:
How should the inner end of the driveaxle be lowered and removed for the 2008 GMC Sierra? Posted by Customer
A:
The inner end of the driveaxle should be lowered and pulled out of the hub, carefully guiding the driveaxle out from under the vehicle.
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 25798178, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 25798178 AXLE. It is sometimes referred to as GM 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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