Chevrolet Chevelle 1977 Repair Manual page 428

7B-48
J -2 2 8 7 3
6
Fig. 7B-1 L— Installing 2nd Speed Gear Bushing
J-22872
Fig. 7B-1 7 L— Installing 3rd Speed Gear Bushing
OVERHAUL MANUAL
wear and make sure sleeve slides freely on clutch hub. Also
check fit of clutch hub on mainshaft splines.
2N D GEAR
BUSHING
scoring and inspect third speed gear mainshaft bushing for
excessive wear.
scoring.
surface.
breakage.
wear.
for excessive wear or damage. Also inspect clutch gear
synchronizer cone and third speed gear synchronizer cone for
excessive wear or damage.
Assembly
mainshaft until it bottom s against shoulder (Fig. 7B-16L).
mainshaft until it bottoms against shoulder with annulus
toward rear of shaft.
previously removed).
m ainshaft until it bottoms against hub (Fig. 7B-17L).
1ST GEAR
onto mainshaft and
BUSHING I
synchronizer key slots with keys in synchronizer hub.
with tang on thrust washer in slot on shaft and against 2nd
speed gear bushing. Then press 3rd speed gear bushing onto
mainshaft using Tool J-22875 until it bottom s against thrust
washer (Fig. 7B-18L).
3rd speed gear onto mainshaft, against 3rd speed gear thrust
washer.
assembly keys and press 3rd and 4th synchronizer assembly
onto m ainshaft using Tool J-22875 and against 3rd speed gear
bushing thrust face toward 3rd speed gear (Fig. 7B-19L).
Retain synchronizer assembly with snap ring.
3. Inspect clutch hub -and clutch sleeve for excessive
NOTE: T hird and fourth speed slutch sleeve should
slide freely on third and fourth speed clutch hub but
clutch hub should be snug fit on shaft splines.
4. Inspect 3rd speed gear thrust surfaces for excessive
NO TE: T hird speed gear must be a running fit on
mainshaft bushing and mainshaft bushing should be
press fit on shaft.
5. Check second speed thrust washer for excessive
6. Inspect 2nd speed gear for excessive wear at thrust
Check synchronizer springs for looseness or
7. Inspect second gear synchronizing ring for excessive
8. Inspect bronze synchronizer cone on 2nd speed gear
NOTE: First and reverse sliding gear must be sliding fit
on synchronizer hub and must not have excessive radial
or circumferential play. If sliding gear is not free on hub,
inspect for burrs which may have rolled up on front end
of half-tooth internal splines and remove by honing as
necessary.
9. Inspect all gear teeth for excessive wear.
1. Using Tool J-22873 press 2nd speed bushing onto
NOTE: Lubricate bushing with E.P. oil before pressing.
1st, 2nd and 3rd speed gear bushings
CAUTION:
are sintered iron, exercise care when installing.
2. Press 1st and 2nd speed synchronizer hub onto
3. Install 1st and 2nd synchronizer keys and springs (if
4. Using Tool J-22873 press 1st speed gear bushing onto
N O TE: Lubricate all bushings with E.P. oil before
installation of gears.
5. Install synchronizer blocker ring and 2nd speed gear
against synchronizer hub.
6. Install 3rd speed gear thrust washer onto mainshaft
7. Install 3rd speed gear synchronizer blocker ring and
8. Index synchronizer ring key slots with synchronzier
Index