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GMC 12384951 Rear Half Transfer Case

1998-2004 GMC

Customer Questions & Expert Answers (3)
12384951 GM Rear Half Transfer Case Illustration 1 of 1
  • Part Description
    Case,Transfer(Rear Half)
  • Position
    Rear
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12384951
    Part DescriptionCase,Transfer(Rear Half)
    Item Dimensions17.2 x 16.5 x 3.6 inches
    Item Weight4.20 Pounds
    PositionRear
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12384951
    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
    1998-2001 GMC Jimmy6 Cyl 4.3L2 DOOR, 4 DOOR
    1998-2004 GMC Sonoma4 Cyl 2.2L, 4 Cyl 2.2L Flex, 6 Cyl 4.3L4 DOOR, PICKUP, PICKUP EXTENDED CAB
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12384951 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What equipment is recommended to support the Transfer Case for the 1999 Chevrolet S10? Posted by Kendrick W.
    A:
    Use a jack, preferably designed for this purpose, to support the transfer case, utilizing safety chains for stability. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Feb 22, 2025
    Q:
    What is the final step in removing the Transfer Case for the 1998 GMC Sonoma? Posted by Jamul S.
    A:
    Once the input shaft is clear, lower the transfer case and remove it from under the vehicle. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Feb 10, 2026

Genuine GM Part 12384951, the Right Choice

To ensure reliability, purchase GM part # 12384951 Rear Half Transfer Case. It is sometimes referred to as GMC Transfer Case. 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 GMC Jimmy, Sonoma models.

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