Chevrolet 1980 Light Duty Truck Service Manual page 238

3B 4-24 STEERING CO LUM NS
Removal
Front of dash mounting plates must be loosened
whenever the steering column is to be lowered from the
instrument panel.
1. Disconnect the battery ground cable.
2. Remove the steering wheel as outlined under
"Steering Wheel Removal".
3. Remove the nuts and washers securing the flanged
end of the steering shaft to the flexible coupling.
4. Disconnect the transmission control linkage from
the column shift tube levers.
5. Disconnect the steering column harness at the
connector. Disconnect the neutral-start switch and back-up
lamp switch connectors if so equipped.
6. Remove the floor pan trim cover screws and remove
the cover.
7. Remove the transmission indicator cable, if so
equipped (Fig. 3B4-33).
8. Remove the screws securing the two halves of the
floor pan cover; then remove the screws securing the halves
and seal to the floor pan and remove the covers (Fig. 3B4-
34).
9. Move the front seat as far back as possible to provide
maximum clearance.
10. Remove the two column bracket-to-instrument
panel nuts and carefull remove from vehicle. Additional
help should be obtained to guide the lower shift levers
through the firewall opening.
C and K Series, Standard Column - (Fig.
Disassembly
1. Remove the four dash panel bracket-to-column
screws and lay the bracket in a safe place to prevent damage
to the mounting capsules.
2. Place the column in a vise using both weld nuts of
either Set A or B as shown in Figure 3B4-41. The vise jaws
must clamp onto the sides of the weld nuts indicated by
arrows shown on Set B.
Do not place the column in a vise by
NOTICE:
clamping onto one weld nut of both sets A and B or
by clamping onto the sides not indicated by arrows,
since damage to the column could result.
3. Remove the Directional Signal Switch, Lock
Cylinder, and Ignition Switch as outlined previously in this
section.
4. Column Shift Models
lever pivot pin and remove the shift lever.
5. Remove the upper bearing thrust washer. Remove
the four screws attaching the turn signal and ignition lock
housing to the jacket and remove the housing assembly (Fig.
3B4-42).
6. Remove the thrust cap from the lower side of the
housing.
7. Lift the ignition switch actuating rod and rack
assembly, the rack preload spring and the shaft lock bolt
and spring assembly out of the housing (Fig. 3B4-43).
8. Remove the shift lever detent plate (shift gate).
9. Remove the ignition switch actuator sector through
the lock cylinder hole by pushing firmly on the block tooth
of the sector with a blunt punch or screwdriver (Fig. 3B4-
44).
10. Remove the gearshift lever housing and shroud
from the jacket assembly (transmission control lock tube
housing and shroud on floor shift models).
11. Remove the shift lever spring from the gearshift
lever housing (lock tube spring on floor shift models).
12. Pull the steering shaft from lower end of the jacket
assembly.
3 B 4 -4 0 )
- Drive out the upper shift
LIG H T T R U C K S ER V IC E M ANUAL