Chevrolet 30 Series 1967 Service Manual page 417

of the notch in the shifter shaft and, with other
shifter shafts in neutral position, drive
shaft out of cover. Shifter shaft will push out expan­
sion plug.
NOTE: The shifter shafts are in neutral posi­
tion when the ends of all four shafts are in ap­
proximate alignment toward the rear end of the
transmission cover.
3. Drive out the pins retaining the other forks and heads
to their shaft and remove the shafts, one at a time as
in Step 2.
CAUTION: Care should be taken so that the
shifter lock balls and springs and the interlock
balls and pins are not lost as the shifter shafts
are removed.
F ig. 2 N P - Shifter Shaft Installation
Assembly
1. In reassembling the transmission cover, care should
be used in reinstalling the shifter shafts.
should be installed in order; reverse, 4th and 5th,
2nd and 3rd, and 1st speed.
2. Start shifter shafts into cover.
and heads in position and push shafts through forks
and heads.
3. Install shifter shaft detent springs and balls and in­
terlock ball and pins (fig. 2NP). Depress detent
balls with small punch and press shafts over balls.
Turn shafts, if necessary, to position balls in grooves
in shifter shafts.
4. Install shifter fork and shifter head retaining pins.
5. Install shifter shaft hole expansion plugs and stake
them in place. Use a small amount of Permatex or
equivalent around expansion plugs to seal.
Installation
1. Remove cardboard covering from transmission case.
2. Put reverse idler gear in neutral (move forward).
Put 2nd-3rd sliding clutch into 3rd gear position
(move foward) and put 4th-5th sliding clutch slightly
ahead of neutral.
3. Rotate mainshaft by turning clutch gear until the
st shifter
1
4.
5. Align holes in cover with holes in case and install a
. Using Tool J-8109, replace gearshift lever and check
6
7. Replace transmission cover to body floor, install
REAR BEARING RETAINER OIL SEAL
AND/OR SPEEDOMETER GEARS
Removal and Installation
1. Disconnect propeller shaft and disconnect propeller
2. Remove
3. Remove universal joint flange retaining nut and re­
4. Remove rear bearing retainer and gasket and speed­
5. To replace rear bearing retainer oil seal:
. Install speedometer drive gear and bearing retainer
6
They
Hold shifter forks
CLUTCHES AND TRANSMISSIONS 7-31
teeth on the st speed sliding gear will butt against
1
the low speed teeth on the countershaft, as the sliding
gear is pushed rearward.
sliding gear from moving too far rearward.)
Put shift forks in cover into 3rd gear position. Place
new gasket on case and install cover as follows:
a. Engage reverse shifter fork on reverse idler
gear.
b. While keeping left side of cover up, align 4th-5th
shifter fork on 4th-5th synchronizer clutch.
c. Engage 2nd-3rd shifter fork in 2nd-3rd synchro­
nizer clutch.
d. Make sure that 1st speed shifter fork is engaged
in st speed sliding gear and drop cover in place.
1
shouldered dowel screw, with lockwasher, in the
second hole from front in each side of cover (arrows,
fig. 2NP). Install all other screws and lockwashers
in cover and torque to 20-25 ft. lbs.
operation by shifting into all gears.
floor mat and replace accelerator pedal.
shaft brake.
speedometer driven gear from bearing
retainer.
move universal joint flange and brake drum assembly
from mainshaft.
ometer drive gear.
a. Remove oil seal from retainer.
b. Coat outer diameter of new seal with Permatex
and install seal in retainer using Tool J-6416
(fig. 3NP).
using a new gasket. Install brake drum, universal
Fig. 3 N P - Installing O il Seal with Tool J-6416
(This will prevent the
CHEVROLET TRUCK SERVICE MANUAL