GMC 1976 ZEO 6083 Maintenance Manual page 481

Figure 21-Removing Speedometer Driven Gear
Retainer
hang edge of bench.) Stand transmission on the two
eight inch bolts and the output flange end of the
transmission case . (figure 23)
REMOVE VACUUM MODULATOR
AND VALVE
NOTE :
Unit may be removed without removing
transmission or bottom pan, after removing
vacuum hose .
1. Remove vacuum modulator attaching screw
and retainer from transmission case .
2. Remove modulator assembly and O-ring from
transmission case . Remove and discard O-ring from
vacuum modulator, Figure 24 .
Figure 22-Governor Removal
TRANSMISSION 7- 3 3
Figure 23-Arrangement of Transmission on Bench
3 . Remove modulator valve from transmission
case .
NOTE:
Modulator bushing is a snug fit in trans-
mission case and should not be removed forcibly
unless it is damaged, scored, or otherwise de-
formed .
REMOVE INTAKE PIPE AND
FILTER ASSEMBLY AND BOTTOM
PAN
NOTE:
Units may be removed with transmission
in vehicle. In cases of transmission malfunction,
intake pipe and filter must be replaced .
1 . Remove thirteen bottom pan attaching screws .
Figure 24-Removing Vacuum Modulator