Chevrolet Silverado / GMC Sierra. Service manual — part 795
3-5 REVERSE CLUTCH PISTON INSTALLATION
Fig. 161: Installing 3-5 Reverse Clutch Piston
1
1-2-3-4 Clutch Piston Seal
2
3-5 Reverse Clutch Piston Dam (O-Ring) Seal
3
3-5 Reverse Clutch Piston Inner Seal
4
1-2-3-4 Clutch Piston Housing
5
3-5 Reverse Clutch Piston Outer Seal
6
3-5 Reverse Clutch Piston
7
1-2-3-4 Clutch Piston Inner Seal
NOTE:
Do not install a NEW 1-2-3-4 clutch piston inner
seal yet. A special tool used to install the 1-2-3-4
clutch piston housing retaining ring may damage
the seal if the seal is installed prior to installing the
retaining ring. Refer to 3-5 Reverse Clutch Piston
Installation.
8
1-2-3-4 Clutch Piston Housing Seal
9
1-2-3-4 Clutch Piston Housing Seal
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Courtesy of GENERAL MOTORS CORP.
3-5 Reverse Clutch Piston Installation
Callout
Component Name
1
3-5 Reverse Clutch Piston
2
3-5 Reverse Clutch Spring
NOTE:
Ensure the clutch spring is centered on the piston with
the tabs facing up. Failure to do so may cause damage
to the clutch assembly.
3
1-2-3-4 Clutch Piston Housing
4
1-2-3-4 Clutch Piston Housing Retaining Ring
Special Tools
DT 47782-1 Retaining Ring Cone. See
Special Tools.
DT 47782-2 Retaining Ring Installer. See
Special Tools.
NOTE:
Before using the DT 47782-2, push the retaining ring
over the DT 47782-1 by hand so that the ring is
positioned below the tapered area of the DT 47782-1. If
the ring is positioned above the tapered area when it is
being installed, the ring will become lodged between
both tools and damage to the tools, retaining ring, and
piston housing will result.
NOTE:
Refer to Retaining Ring Reuse Notice .
NOTE:
Push the retaining ring down over the cone until the
ring seats firmly in the retaining ring groove. The
retaining ring will make a distinctive click sound when
it seats. Failure to properly seat the retaining ring may
cause damage to the 3-5 reverse clutch assembly.
1-2-3-4 Clutch Piston Inner Seal
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
1-2-3-4 CLUTCH PISTON INSTALLATION
Fig. 162: Installing 1-2-3-4 Clutch Piston
Courtesy of GENERAL MOTORS CORP.
5
NOTE:
Install a NEW seal and orientate as shown. Failure to
do so may cause internal transmission leaks and
damage to the transmission.
2008 Chevrolet Silverado 1500
2008 TRANSMISSION Automatic Transmission - 6L50/6L80/6L90 - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
1-2-3-4 Clutch Piston Installation
1-2-3-4 CLUTCH PLATE INSTALLATION
Callout
Component Name
1
1-2-3-4 Clutch Piston
2
1-2-3-4 Clutch Spring
NOTE:
Ensure the clutch spring is centered on the piston
with the tabs facing up. Failure to do so may cause
damage to the clutch assembly.
3
1-2-3-4 Clutch Piston Dam Assembly
Tip: Lubricate the inner and outer surfaces of
the dam assembly with ATF in order to ease
installation into the piston. Install the tabs
facing up.
4
1-2-3-4 Clutch Piston Dam Retaining Ring
Special Tool:
J 38734 Intermediate Spring Compressor
Adapter. See Special Tools.
NOTE:
Use care when compressing the 1-2-3-4 clutch
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
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