Chevrolet 10 1971 Series, Chassis Service Manual

Page: 116 / 466

FRONT SUSPENSION 3-16
J-23447
Fig. 27— Removing Ball Socket Retaining Nut
Repair The A x le Joint Com ponents:
a. Remove the lock rings after removing pressure
from the trunnion bearings by squeezing the ends
of the bearing in a vise.
b. Support the shaft yoke in a bench vise or on a
short length of pipe.
c. Using a brass drift and a soft hammer, drive on
end of one trunnion bearing just far enough to
drive opposite bearing from yoke.
d. Support the other side of the yoke in the vise and
drive the other bearing out by tapping on the end
of the trunnion using a brass drift.
e. Remove trunnion.
f. Clean and inspect bearings. Lubricate with a high
melting point wheel bearing type grease.
g. Replace trunnion and press new or relubricated
bearings into yoke and over trunnion hubs far
enough to install lock rings.
h. Hold trunnion in one hand and tap yoke lightly to
seat bearings against lock rings.
9. Remove axle slingers by placing into a vise and tap­
ping off as shown in Figure 25 or using a press.
NOTE:
If spindle seals will be replaced, also
replace the axle shaft slingers.
10. To remove the tie rod:
a. Remove cotter pins.
b. Loosen tie rod nuts and tap on nut with a soft
hammer to break the studs loose from the knuckle
arm.
c. Remove nuts and disconnect the tie rod.
NOTE:
If it is necessary to remove the steering
arm, discard the three self-locking nuts (fig. 26)
and replace with new nuts at assembly.
11. Remove the cotter pin from the upper ball socket nut.
12. Remove the retaining nuts from the upper and lower
ball sockets as shown in Figure 27.
13. Remove the knuckle assembly from the yoke by in­
serting a suitable wedge-shaped tool between the
lower ball stud and the yoke and tapping on the tool
to release the knuckle assembly. Repeat as required
at the upper ball stud location.
Fig. 28— Loosening Ball Stud Adjusting Sleeve
CAUTION:
Do_ not remove the yoke upper ball
stud adjusting sleeve unless new ball studs are
being installed. If 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 28. The nonhardened threads
in the yoke can be easily damaged by the
hardened threads in the adjusting sleeve if
caution is not used during knuckle removal.
14. Remove the upper and lower ball sockets from the
knuckle using Holder J-9519-10 and Adapter J-23454-1
as a forcing screw.
NOTE:
Remove the lower ball joint snap ring
before beginning.
Assembly
1. Install the lower ball socket into the knuckle. Place
the knuckle onto holder J-9519-10 in the vise using
adapter J-23454-2. Be sure that the lower socket
(the socket without the cotter pin hole in the stud
end) is straight. Force knuckle onto ball socket until
properly seated. Install the lower ball joint snap ring.
NOTE:
Install new ball stud adjusting sleeves
whenever new ball studs are installed.
2. Follow the same procedure as in Step 1 to install the
upper ball socket to the knuckle.
3. Position the knuckle and sockets to the yoke. Install
new nuts finger tight to the upper (the nut with the
cotter pin slot) and lower ball socket studs.
4. Push up on the knuckle (to keep the ball socket from
turning in the knuckle) while tightening the lower
socket retaining nut. Torque lower nut to 70 ft. lbs.
5. Torque the yoke upper ball stud adjusting sleeve to
50 ft. lbs. using Spanner J-23447.
6. Torque the upper ball socket nut to 100 ft. lbs. as
shown in Figure 29. After torquing the nut, do not
loosen to install cotter pin, apply additional torque, if
necessary, to line up hole in stud with slot in nut.
If Tie Rod and Steering A rm Were Rem oved:
a. Assemble the steering arm using the three stud
10-30 CHEVROLET TRUCK SERVICE MANUAL