Copyright © 1996 General Motors Corp. 7–17
ASSEMBLY OF TRANSMISSION
(2) Install the sealring onto the vacuum
modulator (Figure 7–37). Lubricate the sealring with
oil-soluble grease. Install the vacuum modulator.
(3) Rotate the vacuum modulator until the
hose nipple faces ten degrees downward (toward bottom
of transmission) and directly forward (Figure 7–38).
(4) Install the modulator retainer, bent tabs
toward transmission, and secure it with a
5
⁄16-18 x
3
⁄4
inch bolt (Figure 7–38). Tighten the bolt to 10–16 lb ft
(14–22 N·m).
Figure 7–37. Installing Vacuum Modulator
Figure 7–38. Installing Vacuum Modulator
Retainer Bolt
c. Torque Converter Assembly
(Foldout 7,A or B)
(1) Position the transmission housing front
end upward. Install the torque converter assembly into
the transmission housing (Figure 7–39). Be sure the
splines on the converter turbine shaft engage the
splines in the converter turbine hub, and the tangs on
the converter pump hub engage the input pump drive
gear. (Refer to Foldout 1, 2, or 3.)
(2) Install the torque converter retaining
strap before removing the transmission from the hold-
ing fixture.
Figure 7–39. Installing Torque
Converter Assembly
H02895
VALVE ACTUATING ROD
(EARLIER MODELS)
SEALRING
VACUUM
MODULATOR
GOVERNOR
COVER
BOLT,
5
⁄16-18 x
9
⁄16 in. (4)
H02894
BOLT
RETAINER
VACUUM
MODULATOR
CAUTION:
Allison Transmission Division GM recommends
only genuine Allison torque converters for use
with any AT 500, 1500 Series Allison transmis-
sions. Any transmission damage that may occur
as a result of using a converter other than a new
Allison converter or a genuine Allison replace-
ment is the responsibility of the owner and will
not be covered by Allison warranty.
H02893
TORQUE
CONVERTER
ASSEMBLY
J 23642-01
J 3289-20
TURBINE SHAFT
STATOR
SHAFT
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