Chevrolet 1977 light duty truck Service Manual page 300

7. Remove bolts securing crossm em ber to fram e
bottom rail an d lower the assembly from vehicle.
Installation
CAUTION: See C A U T IO N on page I o f this
section regarding the fa steners referred to in
steps I, 2, 4, 5, an d
6
1. Jack crossmember into position under fram e
and install fram e bottom rail mounting bolts.
2. Install bolts securing crossmember hanger to
fram e and torque nuts. See specifications.
3. Position engine on front mount and install
m ounting bolt and torque (see Section 6).
FRONT SUSPENSION, FOUR-WHEEL DRIVE
G e n e ra l D escription........................................................ 3C- 2 4
M ainten ance and A d ju stm e n ts.................................. 3C- 27
Ball Joint A d ju s tm e n t............................................... 3C- 27
Bearing Lubrication.................................................... 3C- 28
Wheel Bearing A d ju s tm e n t..................................... 3C- 28
C om ponent Replacement- ........................................... 3C- 2 9
Hubs, Free-W heeling (K id. K 2 0 )......................... 3C- 29
Hubs, Locked (KIO. K20, K.30)............................ 3C- 3 0
Front drive axles used on KIO, K20, and K30 trucks
have several styles o f wheel-end construction.
At the wheel ends o f the axle tubes, two types of
steering knuckle attachment are used. Figures 3C-1K and
3C-2K show the KIO and K20 knuckle attached with ball
joints. Figure 3C-3K shows the king-pin attachm ent used
in K30. The tapered upper king pin fits in a tapered
nylon bushing. The lower king pin is part o f the bearing
cap, and this king pin rides in a tapered roller bearing.
7.
SERIES K10, K20, K30
INDEX
GENERAL DESCRIPTION
4. Install the shock absorber.
5. Install brake support
removed.
6. Connect front brake m ain feeder line and bleed
brakes as described in Section 5.
7. Install idler arm and pitm an arm (see Section
9).
8. Check and Adjust
outlined under " M aintenance and Adjustm ents" in this
section.
9. Lower the vehicle to the floor.
S p in d le .............................................................................3 C - 3 0
Steering Knuckle (KIO, K 2 0 ) ................................ .3 C -3 1
Steering Knuckle (K 30)............................................ 3 C -3 3
Shock A b s o r b e r ........................................................... 3 C -3 6
Stabilizer B a r ............................................................... 3 C -3 6
L eaf S p r i n g .................................................................. 3C- 37
Specifications..................................................................... 3 C -3 8
Special T o o ls .................................................................... 3 C -3 9
All trucks with full-time four-wheel drive use a
locked hub. as shown in Figure 3C-1K (for KIO, K20),
and in Figure 3C-3K (for K30). A free-wheeling hub is
used on trucks equipped with part-time four-wheel drive.
The free-wheeling hub (for KIO, K20) is shown in Figure
3C-2K. This hub allows the driver to manually engage or
disengage the hub from the axle shafts.
struts if previously
front end alignm ent as