Chevrolet Silverado / GMC Sierra. Service manual — part 782

Low and Reverse Clutch Plate Removal

LOW AND REVERSE CLUTCH PISTON REMOVAL

Fig. 129: Removing Low And Reverse Clutch Piston
Courtesy of GENERAL MOTORS CORP.

Low and Reverse Clutch Piston Removal

Callout

Component Name

1

Low and Reverse Clutch Backing Plate
Retaining Ring

2

Low and Reverse Clutch Backing Plate

3

Low and Reverse Clutch Plate Assembly (Qty:
5)

4

Low and Reverse Clutch Plate (Qty: 5)

5

Low and Reverse Clutch (Waved) Plate

Callout

Component Name

Low and Reverse Clutch Spring Retaining
Ring

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

LOW AND REVERSE CLUTCH PISTON INSTALLATION

1

Special Tool:
DT 47779 Clutch Spring Compressor. See
Special Tools.

NOTE:

Ensure the DT 47779 contacts the sprag assembly
and not the sprag retaining ring. Damage to the
sprag may result.

2

Low Clutch Sprag Assembly

3

Low and Reverse Clutch Spring

4

Low and Reverse Clutch Piston Assembly
Tip: It may be necessary to apply air to the
apply passage in order to unseat the piston.

5

Low Clutch Sprag Seal

NOTE:

Refer to Seal Reuse Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 130: Installing Low And Reverse Clutch Piston
Courtesy of GENERAL MOTORS CORP.

Low and Reverse Clutch Piston Installation

Callout

Component Name

1

Low and Reverse Clutch Piston Assembly
Tip: Lubricate the inner and outer sealing surfaces of
the piston assembly with automatic transmission fluid
(ATF) in order to ease installation into the center
support assembly.

Low Clutch Sprag Seal

NOTE:

Refer to Seal Reuse Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

LOW AND REVERSE CLUTCH PLATE INSTALLATION

2

Tip: Apply ATF to the DT 47780 to ease seal
installation. See Special Tools.
Special Tool:
DT 47780 Low Clutch Sprag Seal Cone. See Special
Tools.

3

Low and Reverse Clutch Spring

NOTE:

Ensure the spring tabs are facing up during installation.
Failure to do so may cause damage to the clutch assembly.

4

Low Clutch Sprag Assembly
Tip:

Verify that the low clutch sprag is operating
correctly. Refer to the illustration for proper
freewheel direction.

Ensure the missing splines on the sprag assembly
are aligned with the missing splines on the center
support hub.

5

Low and Reverse Clutch Spring Retaining Ring

Special Tools

DT 47778-1 Low Clutch Sprag Retaining Ring
Cone. See Special Tools.

DT 47778-2 Low Clutch Sprag Retaining Ring
Pusher. See Special Tools.

DT 47779 Clutch Spring Compressor. See
Special Tools.

NOTE:

Ensure the DT 47779 contacts the sprag assembly and not
the sprag retaining ring. Damage to the sprag may result.

NOTE:

The retaining ring gap must be aligned with the 3 missing
splines on the center support hub. Failure to do so may
cause damage to the clutch assembly.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado