GMC 1986 P-Truck Service Manual page 303

Figure 15—D isconnecting The Upper Ball Joint
From The Steering Knuckle
• Position a floor jack under the lower control
arm (36) near the spring seat.
• Raise the jack until it just supports the lower
control arm.
• Use J-23742 to break the upper ball joint
free of the steering knuckle (figure 15).
• Raise the upper co n tro l arm (28) to
disengage the upper ball joint from the
steering knuckle.
Im portant
• Floor jack must remain under the lower
control arm spring seat during removal and
installation to retain the spring and the lower
control arm in position.
7. Steering knuckle (70) from the lower ball joint
(37).
• Use J-23742 to break the lower ball joint free
from the steering knuckle (figure 16).
• Lift the steering knuckle off the lower ball
joint.
Inspect
1. Tapered holes in the steering knuckle that attach
to the ball joints and the tie rod end.
• Remove any dirt.
FRONT SUSPENSION 3C-17
Figure 16—Disconnecting The Lower Ball Joint
From The Steering Knuckle
• If any tap e re d hole is out of round,
deformed, or damaged in any way, replace
the steering knuckle (70).
2. Spindle for wear or damage.
• The steering knuckle (70) must be replaced
if the spindle is damaged or worn.
Install or Connect (Figures 5 through 8)
NOTICE: For steps 3 and 8, refer to the
"Notice" on page 3C#1 of this section.
1. Steering knuckle (70) to the lower ball joint (37).
• Press the steering knuckle onto the lower
ball joint (37) until it is fully seated.
2. Steering knuckle (70) to the upper ball joint (13).
• Lower the upper control arm (28) to seat the
upper ball jo in t (13) into the steering
knuckle.
3. Nuts (14, 35).
• Nuts (14, 35) to " Specifications" at the end
of this section.
Cotter pins (15, 34).
• Tighten the nuts (14, 35), if needed, to install
the cotter pins.
B-06961