Chevrolet 1977 light duty truck, Service Manual

Page: 307 / 861

Servicing Spindle Components
1. Secure the spindle in a vise by locating on the
high step diam eter. Be sure that the machined surface o f
the spindle will not be d a m a g e d by the vise jaws.
2. Rem ove the oil seal.
3. Rem ove the needle roller bearing.
4. Place the spindle in a vise on the high step and
install needle roller bearing.
a. Use J-23445 and Drive H andle J-8092 for
K10, K20.
b. Use J-21465-17 for K-30.
5. Install grease seal onto slinger with lip toward
spindle.
6. Relubricate the needle b earin g and the spindle
end with a high melting point type wheel bearing grease.
Installation
1. Install the bronze thrust w asher over the axle
shaft with the c h a m fe r toward the slinger and install the
spindle as shown in Figure 3C-7K.
2. Assemble spindle to knuckle.
NOTE: Torque spindle nuts to 25 ft. lbs. (K10, 20);
torque to 60 ft. lbs. (K30).
C A U TIO N :
See CAUTION on page 1 o f this section.
K NU CKLE
K 10, K 20, (W IT H BALL J O IN T S )
R em oval
1. R em o v e h u b an d spindle co m p o n e n ts as
outlined earlier.
2. If the steering arm is to be removed, disconnect
the tie rod.
a. Remove cotter pin.
b. Loosen tie rod nuts and tap on nut with a soft
h a m m e r to break the studs loose from the knuckle arm.
c. Remove nuts and disconnect the tie rod.
CAUTION: I f it is necessary to remove the
Fig. 3C -8K -R em oving Steering Arm Nuts
steering arm, discard the self-toeking nuts (Fig.
3C-8K) a n d replace with new nuts at assembly.
3. Remove the cotter pin from the u pper ball
socket nut.
4. Remove the retain in g nuts from the upper and
lower ball sockets as shown in Figure 3C-9K.
5. Remove the knuckle assembly from the yoke by
inserting a suitable w edge-shaped tool between the lower
ball stud and the yoke and tapping on the tool to release
the knuckle assembly. R epeat as required at the upper
ball stud location.
Ball J oint Service
CAUTION: Do not remove the yoke upper ball
stu d adjusting sleeve unless new ball studs are
being installed. I f it is necessary to loosen the
sleeve to remove the knuckle, do not loosen it
more than two threads using Spanner J -23447
as shown in Figure 3C -I4K . The nonhardened
CHAMFER
TOW ARD