Chevrolet 1977 Monte Carlo, Repair Manual

Page: 384 / 428

7B-38 M A N U A L TR A N S M IS S IO N
F ig . 7 B - 5 L - - C o v e r A s s e m b ly
F ig . 7 B - 3 L - R e m o v i n g C o u n t e r g e a r R e a r B e a r in g
2. Place fork detent ball springs and balls in position
in holes in cover.
3. Start shifter shafts into cover; depress detent balls
with small punch and push shafts on over balls. (See Fig.
7 B -7 L ).
Hold reverse fork in position and push shaft
through yoke. Install split pin in fork and shaft; then, push
fork in neutral position.
4. Hold 3rd and 4th fork in position and push shaft
through yoke, but not through front support bore.
Fig. 7B-4L~Rem oving M a in sh a ft Rear B earing
5. Place two (2) interlock balls in cross-bore in front
support boss between reverse and 3rd and 4th shifter shaft.
Install the interlock pin in the 3rd and 4th shifter shaft hole.
Apply grease to hold in place. Push 3rd and 4th shaft
through fork and cover bore, keeping both balls and pin in
position between shafts until retaining holes line up in fork
and shaft. Install retaining pin and move to neutral position.
6
. Place two (2) interlock balls between the 1st and 2nd
shifter shaft and 3rd and 4th shifter shaft in the cross-bore
of the front support boss. Hold 1st and 2nd fork in position
and push shaft through cover bore in fork until retainer hole
and fork line up with hole in shaft. Install retainer pin and
move to neutral position.
7. Install new shifter shaft hole expansion plugs and
expand in place.
D R IV E GEAR (FIG. 7B-8L)
Disassembly
1. Remove mainshaft pilot bearing rollers (17) from
drive gear if not already removed, and remove roller
retainer. Do not remove snap ring on inside of drive gear.
2. Remove snap ring securing bearing on stem of drive
gear.
3. To remove bearing, position Tool J-22872 to the
bearing (Fig. 7B-9L) and using an arbor press and Tool
J-0358 press gear and shaft out of bearing (Fig. 7B-10L).
Inspection
1. Wash all parts in clearing solvent.
2. Inspect roller bearings for pits or galling.
3.
In s p e c t b e a rin g d ia m e te r in s h a f t recess fo r galling.
4.
In s p e c t gear te e t h fo r excessive w ear.
5. Inspect clutch shaft pilot for excessive wear.
6
. Re-oil bearing, then rotate drive gear bearing slowly
by hand and check for roughness.
REVERSE
3RD/4TH
1 S T /2 N D
O V E R H A U L M A N U A L