Hummer H1 Service Manual page 540

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RADIUS ROD REPLACEMENT
Removal
1. Remove wheel.
2. Remove cotter pin, slotted nut, and washer securing radius
rod to geared hub (Figure 9-4).
3. Using puller J–24319-B or equivalent, separate radius rod
from geared hub.
4. Remove locknut, washers, bolt, and radius rod from
bracket.
Installation
1. Install radius rod on bracket with washer, bolt, washer, and
locknut. Tighten locknut to 260 lb-ft (353 N•m)
(Figure 9-4).
CAUTION: Do not loosen slotted nut to install cotter pin. Do-
ing this may result in damage to equipment.
NOTE: When slotted nuts are tightened to prescribed torque
values, cotter pins must have a minimum of 50% engagement
with the nut slots.
2. Install radius rod on geared hub with washer and slotted
nut. Tighten slotted nut to 70 lb-ft (95 N•m). Install cotter
pin in slotted nut.
3. Install wheel.
BRACKET
GEARED HUB
Figure 9-4: Radius Rod Replacement
05745159
RADIUS ROD
Axles, Suspension, and Frame
UPPER BALL JOINT WEAR CHECK PROCEDURE
NOTE: If the vehicle was previously lifted off the ground for
other service, center the steering wheel, roll the vehicle for-
ward and back to settle the suspension and relieve the tension
on the ball joints before beginning checking procedure.
1. With the vehicle on the ground (being careful not to dam-
age the boot), place the tip of a prybar between the steer-
ing knuckle and the ball joint boot (Figure 9-5).
2. With the shank of the prybar contacting the upper control
arm as shown, pry upward and note the movement of the
ball joint against a ruler. Be careful to measure only the
ball joint movement and not the flex of the control arm
resulting from prying against it.
3. Any upper ball joint with more than 1/16" (1.6 mm)
movement should be replaced.
MEASURE
MOVEMENT
HERE
Figure 9-5: Upper Ball Joint Wear Check
9-3
STEERING
KNUCKLE
PRYBAR
7-S09-026.1