How to replace the rear output transfer case seal on GMC Yukon?

The replacement process of the rear transfer case output shaft seal requires shields to be eliminated first if they exist as well as subsequent removal of the rear propeller shaft. Start by taking off the rear output shaft seal before examining the bushing of the rear output shaft for any damage or wear. You can use the transfer case rear bushing remover and installer (J 45380) to remove the rear output shaft bushing by placing its finger section ahead of the bushing then attaching tools before loosening the bushing with a wrench. The tool called transfer case rear bushing remover and installer (J 45380) should be used for installing the new output shaft bushing through a process where the tool and bushing align with the case while using a hammer to perform the installation step until the drain hole on the rear output shaft seal boot faces downward. To complete the repair process, employ the seal installer (J 37668-A) to put in a fresh front output shaft seal and then install the rear propeller shaft before inspecting and adding more fluid when needed and replacing the transfer case shield if applicable.

How to replace the front output transfer case seal on GMC Sierra 1500?

Proper vehicle support and lift techniques enable changing the front output shaft seal. You must first remove the transfer case shield (if present) before taking out the front propeller shaft. The internal front output shaft seal consists of two pieces which include an inner force-fit component that mounts on the output shaft. A flat-tipped screwdriver should be used first to shift the inner seal race forward before using a small pry bar for complete removal from the front output shaft. A flat-tipped screwdriver or small pry bar should be inserted into the space between the outer race lip and the transfer case to remove the remaining output shaft seal portion. To install new seals users must connect the output shaft seal installer (J 43484) to driver handle (J 8092) before inserting the seal onto the installer. The seal installation requires both tools to be used for mounting onto the front output shaft. The front propeller shaft installation proceeds next and the fluid level requires inspection and appropriate fluid addition before replacement of the transfer case shield if present. Lastly, the vehicle needs to be lowered down.

OEM GMC Transfer Case Seal

Transfer Case Output Shaft Seal

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38 Transfer Case Seals found

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GMC Extension Housing Seal, Rear Part Number: 24232324
$12.30 MSRP: $20.27
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Product Specifications
- Other Name: Seal, Rear Bearing Retaining; Automatic Transmission Extension Housing Seal; Transmission Seal; Seal, Transmission Rear Main Bearing; Seal, Transmission Extension
- Position: Rear
- Replaces: 24204540
Fits the following GMC Models:
- Savana 1500 | 2003-2005 | Base, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L GAS
- Savana 2500 | 2003-2005 | Base, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Savana 3500 | 2003-2005 | Base, SLE | 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 1500 | 1999-2013 | Base, Denali, HT, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Sierra 1500 Classic | 2007 | Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005-2006, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 1999-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2010 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Output Shaft Seal Part Number: 14095609
$15.66 MSRP: $25.79
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Product Specifications
- Other Name: Seal, Transfer Case Input Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Transfer Case
Fits the following GMC Models:
- C1500 | 1985 | Base, High Sierra, Sierra Classic | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C1500 Suburban | 1985 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C2500 | 1985 | Base, High Sierra, Sierra Classic | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1985 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1985 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1985 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K1500 | 1985 | Base, High Sierra, Sierra Classic | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K1500 Suburban | 1985 | Base, High Sierra, Sierra Classic | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K2500 | 1985 | Base, High Sierra, Sierra Classic | 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K2500 Suburban | 1985 | Base, High Sierra, Sierra Classic | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC Extension Seal, Rear Part Number: 88935685
$73.42 MSRP: $120.93
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Product Specifications
- Other Name: Seal, Transfer Case Rear Output Shaft; Transfer Case Gasket; Seal, Transfer Case
- Position: Rear
Fits the following GMC Models:
- Envoy | 2002-2009 | Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Envoy XL | 2002-2006 | Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Envoy XUV | 2004-2005 | SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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GMC Extension Housing Seal, Front Part Number: 24226707
$34.07 MSRP: $56.12
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Product Specifications
- Other Name: Seal Assembly-Propeller Shaft Front Slip Yoke Oil; Automatic Transmission Extension Housing Seal; Transmission Seal; Seal, Rear Bearing Retaining; Seal, Transmission Extension; Seal, Transfer Case
- Position: Front
- Replaces: 19133151
Fits the following GMC Models:
- Savana 2500 | 2018-2020 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
- Savana 3500 | 2018-2020 | Base, LS, LT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS
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GMC Adapter Gasket Part Number: 24245110
$8.64 MSRP: $13.71
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Product Specifications
- Other Name: Gasket-Transfer Case Adapter; Transfer Case Adapter Seal
- Replaced by: 86816628
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
- Sierra 1500 | 2019-2022 | AT4, Base, Denali, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon | 2021-2023 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
- Yukon XL | 2021-2023 | AT4, Denali, Denali Ultimate, SLE, SLT | 6 Cyl 3.0 L DIESEL, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Output Shaft Seal, Front Part Number: 12384477
$19.36 MSRP: $30.33
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Product Specifications
- Other Name: Seal, Transfer Case Front Output Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Transfer Case
- Position: Front
Fits the following GMC Models:
- C1500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C2500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C3500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K2500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K3500 | 1989-1990 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Extension Seal, Rear Part Number: 15661460
$26.67 MSRP: $43.93
You Save: $17.26 (40%)
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Product Specifications
- Other Name: Seal, Transfer Case Rear Output Shaft; Transfer Case Gasket; Seal, Transfer Case
- Position: Rear
Fits the following GMC Models:
- Jimmy | 1994-2001 | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sonoma | 1994-2004 | SL, SLE, SLS | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 6 Cyl 4.3 L GAS
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GMC Extension Housing Seal Part Number: 24228876
$27.87 MSRP: $45.93
You Save: $18.06 (40%)
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Product Specifications
- Other Name: Seal, Transmission Input And Turbine Shaft; Automatic Transmission Extension Housing Seal; Transmission Seal; Seal, Universal Joint Sleeve Yoke
- Replaces: 24238075
Fits the following GMC Models:
- Canyon | 2015-2022 | Base, Denali, Elevation, Elevation Standard, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
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GMC Extension Housing Seal Part Number: 8681168
$9.14 MSRP: $12.51
You Save: $3.37 (27%)
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Product Specifications
- Other Name: Seal, Automatic Transmission Case Extension; Automatic Transmission Extension Housing Seal; Transmission Seal; Seal, Transmission Rear Main Bearing; Seal, Rear Bearing Retaining; Seal, Transmission Extension; Seal, Transfer Case
Fits the following GMC Models:
- Yukon XL 1500 | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
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GMC Output Shaft Seal Part Number: 88984501
$28.35 MSRP: $46.70
You Save: $18.35 (40%)
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Product Specifications
- Other Name: Seal, Transfer Case Front Output Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Transfer Case
- Position: Front
Fits the following GMC Models:
- Savana 1500 | 2003-2014 | Base, LS, LT, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Savana 2500 | 2003-2014 | Base, LS, LT, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Savana 3500 | 2003-2014 | Base, LS, LT, SLE | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Input Shaft Seal Part Number: 19299082
$15.41 MSRP: $25.40
You Save: $9.99 (40%)
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Product Specifications
- Other Name: Seal, Transfer Case Input Shaft; Automatic Transmission Input Shaft Seal.; Seal, Transfer Case
- Replaces: 19257407
Fits the following GMC Models:
- Sierra 2500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Extension Housing Seal, Rear Part Number: 23049496
$11.05 MSRP: $17.31
You Save: $6.26 (37%)
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Product Specifications
- Other Name: Seal, Rear Bearing Retaining; Manual Transmission Extension Housing Seal and Gasket Set.; Seal, Transmission Rear Main Bearing; Seal, Transmission Extension
- Position: Rear
Fits the following GMC Models:
- C1500 | 1988-1998 | Sierra, Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1992-1998 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1988-1998 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1998 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1988-1998 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K1500 | 1988-1998 | Sierra, Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra SLX, Sierra Special, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1992-1998 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K2500 | 1988-1998 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K2500 Suburban | 1992-1998 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1988-1998 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Output Shaft Seal, Front Part Number: 84368195
$6.94 MSRP: $10.87
You Save: $3.93 (37%)
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Product Specifications
- Other Name: Seal-Transfer Case Front Output Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Intermediate Transfer Case; Seal, Transfer Case
- Position: Front
Fits the following GMC Models:
- Canyon | 2023 | AT4, AT4X, Denali, Elevation | 4 Cyl 2.7 L GAS
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GMC Output Shaft Seal Part Number: 29536379
$10.44 MSRP: $17.19
You Save: $6.75 (40%)
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Product Specifications
- Other Name: Seal, Transmission Planet Carrier; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Universal Joint Sleeve Yoke
Fits the following GMC Models:
- Sierra 2500 HD | 2011-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2011-2014 | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Extension Housing Seal, Rear Part Number: 24286193
$1.18 MSRP: $1.95
You Save: $0.77 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Rear Bearing Retaining; Automatic Transmission Extension Housing Seal; Transmission Seal
- Position: Rear
Fits the following GMC Models:
- Sierra 2500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Output Shaft Seal Part Number: 84681932
$31.84 MSRP: $52.46
You Save: $20.62 (40%)
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Product Specifications
- Other Name: Seal-Power Transfer U Output Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Transfer Case
- Replaced by: 85732461
- Replaces: 23432724, 84585185
Fits the following GMC Models:
- Terrain | 2018-2023 | AT4, Denali, SL, SLE, SLT | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L DIESEL, 4 Cyl 2.0 L GAS
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GMC Output Shaft Seal Part Number: 84368190
$36.62 MSRP: $58.13
You Save: $21.51 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal, Transfer Case; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal
- Position: Rear
Fits the following GMC Models:
- Sierra 2500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Output Shaft Seal, Front Part Number: 84124168
$12.86 MSRP: $20.41
You Save: $7.55 (37%)
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Product Specifications
- Other Name: Seal-Transfer Case Front Output Shaft; Automatic Transmission Transfer Shaft Seals; Transfer Case Output Shaft Seal; Seal, Transfer Case
- Position: Front
Fits the following GMC Models:
- Sierra 1500 | 2019-2023 | AT4, Base, Denali, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Extension Housing Seal, Front Part Number: 8677463
$20.63
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Product Specifications
- Other Name: Seal, Propeller Shaft Front Slip Yoke Oil; Automatic Transmission Extension Housing Seal; Transmission Seal; Seal, Transmission Rear Main Bearing; Seal, Rear Bearing Retaining; Seal, Transmission Extension
- Position: Front
Fits the following GMC Models:
- G1500 | 1993-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G2500 | 1993-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- G3500 | 1993-1996 | Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Savana 1500 | 2003-2009 | Base, LS, LT, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Savana 2500 | 1996-2009 | Base, LS, LT, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL
- Savana 3500 | 1996-2009 | Base, LS, LT, SLE, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.7 L BI-FUEL, 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 6.6 L DIESEL, 8 Cyl 7.4 L GAS, 8 Cyl 8.1 L GAS
- Sierra 1500 | 2000-2006 | Base, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005-2006, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 2000-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Extension Housing Seal, Rear Part Number: 12549329
$11.40 MSRP: $17.85
You Save: $6.45 (37%)
Product Specifications
- Other Name: Seal, Rear Bearing Retaining; Manual Transmission Extension Housing Seal and Gasket Set.; Seal, Transmission Extension
- Position: Rear
Fits the following GMC Models:
- Jimmy | 1996-2001 | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sonoma | 1996-2004 | SL, SLE, SLS | 4 Cyl 2.2 L FLEX, 4 Cyl 2.2 L GAS, 6 Cyl 4.3 L GAS

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GMC Transfer Case Seal

Choose OEM Transfer Case Seal, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with GMC's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM GMC Transfer Case Seal. You can shop at highly competitive prices and protect your budget. All our genuine GMC parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

GMC Transfer Case Seal ensures tight containment of drivetrain fluid which prevents gears grinding dry at exorbitant expense. The brand has a reputation of truck toughness, boxed frame welding, powertrain reinforcement, and tuning of the suspension that endures heavy cargo without causing a scratch to the daily commuter, the cabin still has active noise barriers and stitched leather to offer as much hushed luxury as possible. GMC pairs are vision and hitch guidance plus smart brake assists to keep the drivers on their toes without causing a hustle. Never-ending road trials in torturous locations filter away the weak links even before they reach the showrooms. GMC is advancing technology each year, adding Wi-Fi, apps to trailer, and the clever MultiPro tailgate to make workdays easier. This consistency will gain loyalty among individuals who are transporting boats, tools, or family equipment through snow, desert, or suburbs. Steel buildings do not corrode and the paint chemistry preserves the luster even during salted winters. Cylinder management on the active mode conserves fuel on the highways but the engines start waking up quickly when faced with towing hills. Transfer Case Seal is placed between the gearbox and driveshaft adapter to form an oil-tight seal that prevents oil leaks during cold conditions whether long haul or during ugly off-road angles. Gears working in fluid remain wet, run at reduced temperatures and avoid the tendency of spline chewing themselves to dust. When the ring breaks and the film drips off, with the spikes of heat, noise increases and the cost of repairs increases exponentially. Transfer Case Seal swaps installed on schedule provide the correct pressure and protect the complete all-wheel system against slippage of chains. Its nitrile rubber is resistant to thermal cycling, road salt, and automatic transmission fluid chemistry.

GMC Transfer Case Seal Parts and Q&A

Extension Housing Seal, Rear
24232325
Q: How to replace the rear output transfer case seal on GMC Yukon?
A:
The replacement process of the rear transfer case output shaft seal requires shields to be eliminated first if they exist as well as subsequent removal of the rear propeller shaft. Start by taking off the rear output shaft seal before examining the bushing of the rear output shaft for any damage or wear. You can use the transfer case rear bushing remover and installer (J 45380) to remove the rear output shaft bushing by placing its finger section ahead of the bushing then attaching tools before loosening the bushing with a wrench. The tool called transfer case rear bushing remover and installer (J 45380) should be used for installing the new output shaft bushing through a process where the tool and bushing align with the case while using a hammer to perform the installation step until the drain hole on the rear output shaft seal boot faces downward. To complete the repair process, employ the seal installer (J 37668-A) to put in a fresh front output shaft seal and then install the rear propeller shaft before inspecting and adding more fluid when needed and replacing the transfer case shield if applicable.
Extension Housing Seal
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Q: How to replace the front output transfer case seal on GMC Sierra 1500?
A:
Proper vehicle support and lift techniques enable changing the front output shaft seal. You must first remove the transfer case shield (if present) before taking out the front propeller shaft. The internal front output shaft seal consists of two pieces which include an inner force-fit component that mounts on the output shaft. A flat-tipped screwdriver should be used first to shift the inner seal race forward before using a small pry bar for complete removal from the front output shaft. A flat-tipped screwdriver or small pry bar should be inserted into the space between the outer race lip and the transfer case to remove the remaining output shaft seal portion. To install new seals users must connect the output shaft seal installer (J 43484) to driver handle (J 8092) before inserting the seal onto the installer. The seal installation requires both tools to be used for mounting onto the front output shaft. The front propeller shaft installation proceeds next and the fluid level requires inspection and appropriate fluid addition before replacement of the transfer case shield if present. Lastly, the vehicle needs to be lowered down.