Chevrolet Silverado / GMC Sierra. Manual - part 788
Fig. 144: Replacing Turbine Shaft Fluid Seal Ring
Courtesy of GENERAL MOTORS CORP.
Turbine Shaft Fluid Seal Ring Replacement
Callout
Component Name
Preliminary Procedures
Inspect the turbine shaft fluid passages and splines.
Clean any plugged passages.
Turbine Shaft Fluid Seal Ring (Qty: 3)
NOTE:
Do not use old seal rings. Install NEW seal rings.
Reusing old seal rings may cause internal transmission
leaks and transmission damage.
NOTE:
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
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
4-5-6 CLUTCH PISTON INSTALLATION
1
Tip: Adjust the turn screw on DT 47768-1 and
install the bottom seal ring first. See Special Tools.
Special Tools
DT 47768-1 Seal Protector. See Special
Tools.
DT 47768-2 Seal Pusher. See Special Tools.
DT 47768-3 Seal Sizer. See Special Tools.
transmission damage.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 145: Installing 4-5-6 Clutch Piston
Courtesy of GENERAL MOTORS CORP.
4-5-6 Clutch Piston Installation
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
4-5-6 CLUTCH PLATES INSTALLATION
Callout
Component Name
1
4-5-6 Clutch Piston Assembly
2
4-5-6 Clutch Spring
NOTE:
Ensure the spring tabs are facing up during
installation. Failure to do so may cause damage to
the clutch assembly.
3
4-5-6 Clutch Piston Dam Assembly
Tip: Lubricate the inner and outer sealing
surfaces of the dam assembly with automatic
transmission fluid (ATF) in order to ease
installation into the piston.
4
4-5-6 Clutch Piston Dam Retaining Ring
Tip: Apply air to verify proper installation of
all 4-5-6 clutch components. The piston should
apply and release smoothly.
Special Tool:
J 43074 Clutch Spring Compressor. See
Special Tools.
NOTE:
Use care when compressing the 4-5-6 clutch piston
assembly, spring and dam assembly. Compressing
the dam assembly too much may damage it.
NOTE:
Refer to Retaining Ring Reuse Notice .
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado