Notes: Boot Type; w/1.400in Width; w/New Process 243C Transfer Case; 2Spd; w/Part Time 4WD
Inside Diameter: 47.900 mm
Outside Diameter: 68.600 mm
Sealing Material: Fluoro-Elastomer
Thickness: 11.900 mm
Part Description: Rear Transfer Case Output Shaft Seal
More Info
FAQ for Transfer Case Output Shaft Seal Repair
Q: How do you remove the transfer case output shaft seal (rear)?
A:
You need to raise the vehicle and remove the transfer case shields, the rear propeller shaft, and the rear output shaft seal.
By Bob
GM Specialist
01/11/2022
Q: How do you remove the transfer case output shaft seal (front)?
A:
You need to raise the vehicle and remove the transfer case shields, the front propeller shaft, the exhaust crossover pipe as well as the front output shaft seal.
By Bob
GM Specialist
01/11/2022
Q: How do you install the transfer case output shaft seal (front)?
A:
You need to install the seal, check the transfer case oil level and add oil as necessary and install the front propeller shaft, the exhaust crossover pipe, and the transfer case shields, and then lower the vehicle.
By Bob
GM Specialist
01/11/2022
Q: How do you install the transfer case output shaft seal (rear)?
A:
You need to install the seal. Lubricate the seal mating surface with an automatic transfer case oil GM P/N 12378396 and install the seal using the J29162. Then install the rear propeller shaft, check the transfer case oil level and add oil as necessary and install the transfer case shields and then you can lower the vehicle.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: What is the removal procedure for the NVG 246-NP8?
A:
You need to remove the lower instrument panel trim, the two screws securing the auto transfer case control module to the bracket, and the wiring harness electrical connector from the auto transfer case control module.