GMC 1976 ZEO 6083 Maintenance Manual page 502

7- 5 4 TRANSMISSION
Figure 75-Center Support Locating Tool
CAUTION :
When using the locating tool,
care should be taken not to raise burrs on
the case valve mounting face.
10 . Before installing intermediate clutch plates,
inspect plates for signs of burning, scoring; and wear .
11 . Lubricate three steel and three composition
intermediate clutch plates with transmission fluid
and install clutch plates in transmission case, Figure
77 . Start with steel plate and alternate composition
and steel plates .
12 . Install intermediate clutch backing plate with
flat machine surface against clutch plates .
13 . Install backing plate to case snap ring with
snap ring gap on side of case opposite front band
anchor pin.
NOTE :
Both sides of this snap ring are flat, and
it is approximately .093" thick.
Figure 76-Locating Center Support
Figure 77-Installing Intermediate Clutch
14 . Air check operation of intermediate clutch
piston . Apply air through center oil feed hole to
actuate clutch piston .
15 . Recheck rear unit end play as described previ-
ously.
DIRECT CLUTCH AND
INTERMEDIATE SPRAG
ASSEMBLY (FIGURE 78)
DISASSEMBLY
1 . Remove sprag retainer snap ring, and remove
clutch retainer .
2. Remove sprag outer race and bushings, and
remove sprag assembly from outer race.
3 . Turn unit over and remove direct clutch back-
ing plate to clutch housing snap ring .
4. Remove direct clutch backing plate and six
composition and six steel clutch plates .
5. Using Clutch Spring Compressor, J-4670,
Rear Clutch Spring Compressor, J-6129, or an arbor
press, and Adapter, J-21664, compress spring re
tainer and remove snap ring with Snap Ring Pliers,
J-8059 or J=5586, Figure 79 .
6. Remove tools, spring retainers, and clutch re-
lease springs.
7. Remove direct clutch piston from direct clutch
housing.
NOTE :
The 1975 and 1976 transmissions now
use a direct clutch piston without a check ball .