Chevrolet 30 Series 1967 Service Manual page 420

CLUTCHES AND TRANSMISSIONS 7-34
Fig. 4S - Removing Poppet Springs
lock pin in shaft as shown in Figure 7S.
5. Slide shaft the rest of the way in, holding shaft level
so pin will stay in shaft. Install set screw in shaft
and lock with wire.
2nd & 3rd
SHIFTER FORK
1st & REVERSE
SHIFTER FORK
Fig. 5S - Shifter Shaft and Fork Installation
F ig . 6S - Location of Interlock Poppets
. Tilt cover and install interlock poppet into position
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against second-and-third shifter shaft (fig.
7. Insert fourth-and-fifth shifter shaft through hole in
front of cover.
4th & 5th
shafts so interlock poppet will permit passage of this
SHIFTER FORK
shaft and slide shaft through forward boss.
. Install shifter fork on shaft with fork to front as
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shown in Figure 9S. Install set screw and lock with
PLUGS
wire.
9. Install plugs in front of cover (fig. 5S), using a small
amount of Permatex or equivalent around plugs to
seal.
10. Place cover right side up on bench and install poppet
balls and springs in holes in cover (fig. 10S).
11. Position first-and-reverse shifter lever in control
lever housing with boss next to housing and install
stud from inside housing. Secure stud with nut and
lockwasher, then insert plunger pin in first-and-
reverse shifter lever (fig. 3S). Assemble new gasket
on cover and install housing so lever fits in slot in
shifter head.
12. Insert outer plunger pin in cover and install spring
and retainer as shown in Figure 2S.
Installation
1. Remove cardboard covering from transmission case.
2. Make sure all transmission gears are in neutral and
2nd & THIRD
SHIFTER FORK
SHIFTER SHAFT
Fig. 7S - Removing Interlock Pin
Position previously installed shifter
SHIFTER
HEAD
FORWARD
BOSS
1st & REVERSE
SHIFTER SHAFT
F ig . 8S - Installing Shifter Head
CHEVROLET TRUCK SERVICE M ANUAL
INTERLOCK
S).
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