PIP5810
Service Bulletin Details
Public Details for: PIP5810
This preliminary information communicates that the tool for the hd transfer cases to install the input seal during a repair is incorrect and a new tool is in development.
Models from 2021
2021 CHEVROLET SILVERADO 5500HD |
2021 GMC SIERRA 2500 |
Models from 2020
2020 CHEVROLET SILVERADO 5500HD |
2020 GMC SIERRA 2500 |
Bulletin No.: PIP5810 Published date: N/A Preliminary Information PIP5810 Transfer Case Input Seal Installation Models Brand: Model: Model Years: VIN: from to Engine: Transmissions: Chevrolet Silverado 2500 HD/3500 HD 2020 - 2021 All All All MGM, MGU GMC Sierra 2500 HD/3500 HD 2020 - 2021 All All All MGM, MGU Involved Region or Country North America Additional Options (RPO) NQF, NQH Condition Transfer case input seal installation tool will not install seal to correct depth. Cause New tool being developed. Condition/Concern Seal installation depth is critical when replacing the transfer case input seal. There is a gap around the outer portion of the seal that needs to be centered over a weep hole in the case. Weep hole is drilled in the center of a grove machined into the case. Tool # DT-50648-A Seal Installer will not work for these applications. There are 2 design transfer case front case halves and the seals install at different depths between design 1 and 2. To identify design level look for a machined groove where the seal is installed (Red circles below). If there is a defined machined groove in the case then it is a first design case. If there is not a defined groove machined into the case then it is second design. First Design Second Design While GM works through the servicing tool strategies, J-45228 (4) can be used to drive the seal in HOWEVER there is no stop at the correct depth. The seal will have to be driven in slowly and seal installed depth checked. Be careful not to drive in to deep or you will need to replace the seal again. One tip for installation is to determine case design level, and put a mark on the outside of J-45228 at 17 mm for rst design and 19.5 for second design (3) as a visual aid to stop when the mark is even with the case. To verify correct installed depth using a vernier caliper check the distance between the case and the outer part of the seal. First design dimension 1 is 10 mm. Second design dimension 2 is 13 mm. Warranty Information No associated or special labor operation, please use the labor op for the repair being performed, this document was created to ensure correct depth in case of a seal replacement. Version History Version Modi ed 1 06/16/2021 - Created on © 2022 General Motors. All Rights Reserved.