Fluid Seal Ring Installation

WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Fluid Seal Ring

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	3-5 Reverse and 4-5-6 Clutch Fluid Seal Ring Procedure Place DT 46620-3 which is part of DT-46620 seal installer over the case cover hub and adjust it so that only the bottom seal ring is exposed. Place a NEW fluid seal ring onto DT 46620-3 which is part of DT-46620 seal installer. Use DT 46620-2 which is part of DT-46620 seal installer to push the fluid seal ring down over DT 46620-3 which is part of DT-46620 seal installer into the hub ring groove. Repeat the above steps to install all 4 seal rings, adjusting DT 46620-3 which is part of DT-46620 seal installer to the appropriate ring groove. Special Tools DT-46620 Seal Installer For equivalent regional tools, refer to Special Tools .
2	Small Chamfer Up CAUTION: Do not force the seal installer down over the seals as this will roll and damage the seals. The large chamfer is designed to fit over the over stretched seal. Use a hand to help shrink the seal if the seal installer is difficult to install over the seal rings. Procedure Install DT 46620-1 which is part of DT-46620 seal installer with the large chamfer end down over the fluid seal rings and leave DT 46620-1 which is part of DT-46620 seal installer on the seals for at least 60 seconds.
3	Large Chamfer Up Procedure Install DT 46620-1 which is part of DT-46620 seal installer with the small chamfer end facing down for at least 60 seconds. This will properly size the bottom seal ring. Leaving DT 46620-1 which is part of DT-46620 seal installer on the fluid seal rings for an extended period of time could cause a fluid leak on the initial clutch piston circuit until the seal rings warm up and expand to the proper dimension.

Callout

Component Name

3-5 Reverse and 4-5-6 Clutch Fluid Seal Ring

Procedure

Place DT 46620-3 which is part of DT-46620 seal installer over the case cover hub and adjust it so that only the bottom seal ring is exposed.
Place a NEW fluid seal ring onto DT 46620-3 which is part of DT-46620 seal installer.
Use DT 46620-2 which is part of DT-46620 seal installer to push the fluid seal ring down over DT 46620-3 which is part of DT-46620 seal installer into the hub ring groove.
Repeat the above steps to install all 4 seal rings, adjusting DT 46620-3 which is part of DT-46620 seal installer to the appropriate ring groove.

Special Tools
DT-46620 Seal Installer
For equivalent regional tools, refer to Special Tools .

Small Chamfer Up

CAUTION:

Do not force the seal installer down over the seals as this will roll and damage the seals. The large chamfer is designed to fit over the over stretched seal. Use a hand to help shrink the seal if the seal installer is difficult to install over the seal rings.

Procedure
Install DT 46620-1 which is part of DT-46620 seal installer with the large chamfer end down over the fluid seal rings and leave DT 46620-1 which is part of DT-46620 seal installer on the seals for at least 60 seconds.

Large Chamfer Up

Procedure

Install DT 46620-1 which is part of DT-46620 seal installer with the small chamfer end facing down for at least 60 seconds. This will properly size the bottom seal ring.
Leaving DT 46620-1 which is part of DT-46620 seal installer on the fluid seal rings for an extended period of time could cause a fluid leak on the initial clutch piston circuit until the seal rings warm up and expand to the proper dimension.