How to replace the input shaft transfer case seal on GMC Sierra 3500 Classic?

First step to replace the input shaft seal is to detach the Transfer Case from the vehicle. The procedure requires a sharp punch to make a seal opening prior to using the output shaft oil seal remover (J 36825). Use of the slide hammer with bearing adapter (J 23907) together with output shaft oil seal remover (J 36825) will help to extract the input seal. Please install the new input shaft seal with the front output shaft seal installer (J 42738) which is followed by reinstallation of the Transfer Case.

OEM GMC Sierra 3500 Classic Transfer Case Seal

Transfer Case Output Shaft Seal

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

7 Transfer Case Seals found

View related parts
GMC Sierra 3500 Classic Extension Housing Seal, Rear
Part Number: 24232325
$14.36 MSRP: $23.64
You Save: $9.28 (40%)
Ships in 1-2 Business Days
ADD TO CART
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: 24201470
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Extension Housing Seal, Rear
Part Number: 24232324
$13.41 MSRP: $22.09
You Save: $8.68 (40%)
Ships in 1-2 Business Days
ADD TO CART
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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Output Shaft Seal, Rear
Part Number: 12547638
$75.02 MSRP: $128.84
You Save: $53.82 (42%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Transfer Case Rear Output Shaft; Automatic Transmission Seal; Gasket; Extension Seal; Seal, Transfer Case
- Position: Rear
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Extension Housing Seal
Part Number: 24236132
$9.35 MSRP: $15.41
You Save: $6.06 (40%)
Ships in 1-2 Business Days
ADD TO CART
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
- Replaces: 08675730, 8675730
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Extension Housing Seal, Rear
Part Number: 23049496
$10.84 MSRP: $16.99
You Save: $6.15 (37%)
Ships in 1-2 Business Days
ADD TO CART
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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Extension Housing Seal, Rear
Part Number: 23049636
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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Extension Housing Seal
Part Number: 12478060
Product Specifications
- Other Name: Seal, Transmission Extension; Manual Transmission Housing Seal; Gasket Set.; Seal, Transmission Main Shaft; Seal, Rear Bearing Retaining
- Position: Rear
- Replaces: 15635281
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS

GMC Sierra 3500 Classic Transfer Case Seal

Our website offers an extensive catalog of genuine GMC Sierra 3500 Classic Transfer Case Seal at unbeatable prices. Every OEM GMC Sierra 3500 Classic Transfer Case Seal comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

GMC Sierra 3500 Classic Transfer Case Seal Parts Questions & Experts Answers

Extension Housing Seal, Rear
24232325
Q: How to replace the input shaft transfer case seal on GMC Sierra 3500 Classic?
A: First step to replace the input shaft seal is to detach the Transfer Case from the vehicle. The procedure requires a sharp punch to make a seal opening prior to using the output shaft oil seal remover (J 36825). Use of the slide hammer with bearing adapter (J 23907) together with output shaft oil seal remover (J 36825) will help to extract the input seal. Please install the new input shaft seal with the front output shaft seal installer (J 42738) which is followed by reinstallation of the Transfer Case.