Chevrolet 10 series 1973, Overhaul Manual

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7 M - 4 6 CLUTCHES A N D M A N U A L T R A N S M I S S I O N S
Fig. 15Q -D isassem bly of M ainsh a ft
CAUTION: 1st, 2nd and 3rd speed gear
bushings are sintered iron, exercise care when
installing.
2. Press 1st and 2nd speed synchronizer hub onto
mainshaft until it bottoms against shoulder with
annulus toward rear of shaft.
3. Install 1st and 2nd synchronizer keys and springs
(if previously removed).
4. Using Tool J-22873 press 1st speed gear bushing
onto mainshaft until it bottoms against hub (fig.
17Q).
Fig. 1 6 Q -In s ta llin g 2nd Speed Gear Bushing
NOTE: Lubricate all bushing with E.P. oil
before installation of gears.
5. Install synchronizer blocker ring and 2nd speed
gear onto mainshaft and against synchronizer hub.
Index synchronizer key slots with keys in synchro­
nizer hub.
6. Install 3rd speed gear thrust washer onto mainshaft
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 bottoms against thrust washer (fig.
18Q).
7. Install 3rd speed gear synchronizer blocker ring and
3rd speed gear onto mainshaft, against 3rd speed
gear thrust washer.
8. Index synchronizer ring key slots with synchronizer
assembly keys and drive 3rd and 4th synchronizer
assembly onto mainshaft using Tool J-22875 and
against 3rd speed gear bushing thrust face toward
3rd speed gear (fig. 19Q). Retain synchronizer
assembly with snap ring.
9. Install reverse driven gear with fork groove toward
rear.
Fig. 17Q -In s ta llin g 3 rd Speed Gear Bushing
OVERHAUL MANUAL