Chevrolet Chevelle 1977 Repair Manual page 407

Fig. 7B-1 2 J~ E xte n sio n B u sh in g R eplacem ent
Clutch Gear Bearing Retainer Oil Seal
If the lip seal in the retainer needs replacement; pry the
oil seal out and replace with a new seal using Tool J-23096
until seal seats in its bore (Figs. 7B-14J and 7B-15J).
NOTE:
Lip of seal must face rear of bearing retainer.
ASSEMBLY OF M A INSHA FT (Fig. 7B-16J)
Turn the front of the mainshaft upward. Install the
following com ponents on the mainshaft:
1. Install the third speed gear with clutching teeth
upward; the rear face of the gear will butt against the flange
on the mainshaft.
2. Install a blocking ring with clutching teeth downward
over the synchronizing surface of the third speed gear. All
four blocker rings used in this transmission are identical.
3. Install the 3rd and 4th synchronizer assembly with
the fork slot downward on the mainshaft until it bottoms out
against flange.
Fig. 7B-1 3 J — Installing Extension Oil Seal
MANUAL TRANSMISSION
Fig. 7B-1 4 J--R em oving B e a rin g R e ta in e r O il Seal
CAUTION:
align with the keys at the synchronizer assembly.
4. Install synchronizer hub to mainshaft snap ring (Fig.
7B-7J). Both synchronizer snap rings are identical. Turn the
rear of the mainshaft
components on the mainshaft:
5. Install the second speed gear with clutching teeth
upward; the front face of the gear will butt against the flange
on the mainshaft.
6. Install a blocker ring with clutching teeth downward
over synchronizing surface of the second speed gear.
7. Install the first and second synchronizer assembly
with fork slot downwards.
8. Install synchronizer hub to mainshaft snap ring (Fig.
7B-10J).
Fig. 7B-1 5J — Installing Bearing Retainer Oil Seal
SCREWDRIVER
Be sure the notches o f the blocker ring
upward. Install the following
7B-27