Chevrolet 70 1969 Series, Shop Manual

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TRANSMISSION AND CLUTCH 7-66
4414-2), remove countershaft rear bearing (7) (fig.
10
).
2. The countershaft assembly (38) can now be removed
by tilting front end upw ard in sam e m anner used in
removing the m ainshaft. Rem ove countershaft and
countershaft front bearing spacer (31).
3. Using a crow foot pry bar in m anner shown in Figure
11, carefully pry the countershaft front bearing (30)
out of transm ission case (6).
4. Rem ove the pressure rotor oil gallery m agnetic plug
(24) from transm ission case (6).
DISASSEMBLY OF SUBASSEMBLIES
C O N T R O L T O W ER D IS A S S E M B L Y
N O T E : O n tran sm issio n s h a v in g a con ve n tion al
ge a rsh ift lever, accom p lish th e fo llo w in g:
1. Rem ove shift lever knob and dust cover from shift
lever.
2. Remove gearshift lever support spring and spring seat
washer.
3. Push shift lever out through bottom of control tower.
SHIFT B A R H O U S IN G D IS A S S E M B L Y
Key num bers in text refer to Figure 12.
1. It is suggested that each shift rod, shift fork, and shift
lug be tagged so they can be properly positioned when
the shift bar housing is reassembled.
2. Place housing upside-down on work bench; then re­
move three shift rod hole welch plugs (4).
3. Remove lock wire from shift lugs and shift forks.
F ig u re 1 3 — R e m o v in g M a in s h a f t Pilot B e a r in g
4. M ove all shift rods into the “ N eu tral” position.
5. Rem ove lock screws (6) from 2nd and 3rd shift fork
(19) and lug (5).
6. While holding thum b o/er poppet hole to prevent los­
ing poppet ball (15), remove 2nd and 3rd speed shift
rod (12), lug (5), and shift fork (19) from housing (5).
7. Rem ove lock screw from 4th and 5th speed shift fork
(7).
8. Holding thum b over poppet hole to prevent loss of
poppet ball, remove 4th and 5th speed shift fork (7)
and 4th and 5th shift rod (13) from housing (1). Be
careful not to lose interlock cross pin (18) from 4th
and 5th speed shift rod (13).
Figure M — R e m o v in g 4th Speed G e a r R etain ing Ring
Figure 15— R e m o vin g 4th Speed G e a r B u sh in g Sleeve
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L