Chevrolet 10 1971 Series Chassis Service Manual page 113

Fig. 20— Hub Assembly - K10
1. Spring Retainer Plate
2. Pressure Spring
3. Inner Clutch Ring and
Bushing Assembly
4. Axle Shaft Sleeve and
Clutch Ring Assembly
5. Outer Clutch Retaining Ring
6. Internal Snap Ring
Assembly
1. Place new "O " ring seal on actuator knob. Apply
lubri-plate to "O " ring and place actuator knob in
retaining plate.
Installation
All parts should be lubricated during assembly to pre­
vent deterioration before the unit is put into service.
1. Install spring retainer plate (flange side facing
bearing) over spindle nuts and seat retainer against
bearing outer cup.
2. Install pressure spring into position.
seats against spring retaining plate.
Spring is an interference fit. When spring
NOTE:
is seated, spring extends past the spindle nuts
by approximately 7/8" .
3. Place inner clutch ring and bushing assembly into
axle shaft sleeve and clutch ring assembly and install
as an assembly onto the axle shaft. Press in on
assembly and install axle shaft snap ring.
Install 7/16 x 20 bolt in axle shaft end
NOTE:
and pull outward on axle shaft to aid in installing
snap rings.
4. Install actuating cam body (cams facing outward),
outer clutch retaining ring and internal snap ring.
5. Install "O " ring on retaining plate and install ac­
tuating knob and retaining plate.
Install actuating
NOTE:
"LOCK" position - - grooves in knob must fit into
actuator cam body.
7. " O " Ring
8. Retaining Plate
9. Retaining Plate Bolts
and Seals
10. Actuator Knob
11. Axle Shaft Snap Ring
12. " O " Ring
13. Actuating Cam Body
Large O.D.
knob with knob in
FREE P O SIT IO N
LO CK PO SIT IO N
Fig. 21— Hub Key Position - Typical
6. Install six cover bolts and seals.
7. Turn knob to "FREE" position to check for proper
operation.
8. Lower vehicle on hoist.
FREE-WHEELING HUB
K20 Series
Removal
1. Place vehicle on hoist and support on frame to allow
front suspension to hang free. Remove wheel and
tire assembly.
2. Turn hub key knob to the "FREE" position.
3. Remove alien head bolts securing the retainer cap
assembly to the wheel hub.
4. Pull off the hub cap assembly and gasket; also re­
move exterior sleeve extension housing and gasket.
Disassembly of Locking Hub Cap Assembly.
a. Turn hub key knob to locked position.
b. Drive out key knob retainer roll pin.
c. Remove outer clutch gear assembly.
d. Remove lock ring and remove slotted adjustment
sleeve.
e. Remove spring.
f. Remove lock ring securing the plastic key knob to
the hub retainer cap.
g. Remove "O " ring from the plastic hub key knob.
5. Remove snap ring from end of axle shaft.
6. Pull internal clutch gear and collar.
7. Remove outer lock nut and keeper (washer with holes
using J-6893.
8. Remove inner adjusting nut with J-6893.
9. Remove hub assembly from spindle.
10. Remove outer bearing and race assembly.
11. Remove seal and inner bearing and race assembly.
12. Remove inner and outer hub bearing cups with brass
drift.
Inspection
1. Discard all seals, gaskets and "O " rings.
FRONT SUSPENSION 3-13
10-30 CHEVROLET TRUCK SERVICE MANUAL