Turbine Shaft Fluid Seal Ring Replacement

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Turbine Shaft Fluid Seal Ring

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Inspect the turbine shaft fluid passages and splines. Clean any plugged passages.
1	Turbine Shaft Fluid Seal Ring (Qty: 3) CAUTION: Do not use old seal rings. Install NEW seal rings. Reusing old seal rings may cause internal transmission leaks and transmission damage. CAUTION: Size the fluid seal rings for at least 5 minutes after installation to obtain proper seal ring size. Failure to do so may cause internal transmission leaks and transmission damage. NOTE: Adjust the turn screw on DT 47768-1 Seal Protector and install the bottom seal ring first. Special Tools DT 47768-1 Seal Protector DT 47768-2 Seal Pusher DT 47768-3 Seal Sizer For equivalent regional tools, refer to Special Tools .

Callout

Component Name

Preliminary Procedures

Inspect the turbine shaft fluid passages and splines.
Clean any plugged passages.

Turbine Shaft Fluid Seal Ring (Qty: 3)

CAUTION: Do not use old seal rings. Install NEW seal rings. Reusing old seal rings may cause internal transmission leaks and transmission damage.

CAUTION: Size the fluid seal rings for at least 5 minutes after installation to obtain proper seal ring size. Failure to do so may cause internal transmission leaks and transmission damage.

NOTE: Adjust the turn screw on DT 47768-1 Seal Protector and install the bottom seal ring first.

Special Tools

DT 47768-1 Seal Protector
DT 47768-2 Seal Pusher
DT 47768-3 Seal Sizer

For equivalent regional tools, refer to Special Tools .