GMC 1976 ZEO 6083 Maintenance Manual page 506

7- 5 8 TRANSMISSION
SNAP
DIRECT CLUTCH
THRUST
WASHER
RING
HUB
FORWARD CLUTCH
HUB
(5) COMPOSITION
PLATES
THRUST
WASHER
(5) FLAT STEEL
(1) DISHED STEEL
PLATES
PLATE
FORWARD CLUTCH ASSEMBLY
A-2194
6. Remove tools, spring retainer and 16 clutch
release springs. Keep springs separate from direct
clutch springs .
7. Remove forward clutch piston from forward
clutch housing.
8. Remove inner and outer seals from clutch pis-
ton .
9. Remove center piston seal from forward clutch
housing.
INSPECTION
1 . Inspect composition-faced and steel clutch
plates for signs of burning, scoring or wear.
2. Inspect release springs for collapsed coils or
signs of distortion .
3 . Inspect clutch hubs for worn splines, proper
lubrication holes, and thrust faces.
4. Inspect piston or cracks .
5 . Inspect clutch housing for wear, scoring,
cracks and open oil passages .
Figure 84-Forward Clutch Components
ASSEMBLY (FIGURE 86)
1 . Lubricate new inner and outer clutch piston
seals with transmission fluid. Lubricate seal grooves
in forward clutch piston with petrolatum and install
seals with lips facing away from spring pockets.
IMPORTANT :
The transmissions now use a direct
clutch piston without a check ball . The forward
Figure 85-Removing Forward Clutch Snap Ring