Chevrolet Light Duty Truck 1973 Service Manual page 194

3 -2 0 FRONT SUSPENSION
Fig. 29—Removing Inner Pivot Shaft
Bushing Replacement (Steel Bushings)
1. Remove grease fittings from bushing outer ends
and unscrew bushings from control arm and shaft.
2. Slide new seal on each end of shaft and insert shaft
into control arm.
3. Start new bushings on shaft and into control arm.
Adjust shaft until it is centered in control arm, then
turn bushings in and torque to specifications. Figure
30 shows correct final positioning of shaft. Check
shaft for free rotation and install grease fittings.
Installation
See CAUTION on page 1 of this
CAUTION:
section regarding the fasteners referred to in
steps 3, 5 and 6.
NOTE: When installing the upper control
arm be sure to properly position the special
aligning washers to the pivot shaft with
convex and concave sides together.
1. Install the shaft to the control arm and install end
nuts. Do not torque nuts at this time.
2. Position cross shaft to frame bolts and start cross
shaft nuts.
3. Torque the shaft end nuts. See Fig. 30 for proper
spacing.
NOTE: The shaft should rotate by hand after
the nuts are torqued.
4. Install caster and camber shim in their appropriate
places.
5. Torque the cross-shaft to frame nuts.
. Remove the safety chain and install the tire.
6
7. Lower vehicle to the floor.
LOWER CONTROL ARM INNER PIVOT
SHAFT
AND/OR BUSHING REPLACEMENT
C20-30, G30, P10-30 (Steel Bushings)
Lower—Removal (Fig. 29)
1. Raise vehicle and support the frame so that control
arms hang free.
2. Position an adjustable floor jack under the control
arm inboard of spring and into depression in lower
arm.
3. Install a chain over upper arm (Fig. 29). Inboard of
stabilizer and outboard of shock absorber as a
safety measure.
4. Disconnect shock absorber at lower control arm.
5. Loosen shaft end nuts.
. Remove "U " bolts.
6
7. Lower jack just enough to get at shaft.
. Remove shaft end nuts and remove shaft.
8
Bushing Replacement (Steel Bushings)
1. Remove grease fittings from ends of bushings and
unscrew bushings from shaft and control arm.
Remove shaft and seals.
2. Slide new seal on each end of shaft and insert shaft
into control arm.
3. Start new bushings on shaft and into control arm.
Adjust shaft until it is centered in control arm, then
turn bushings in and torque to specifications. Check
shaft for free rotation. Figure 31 shows correct final
positioning of shaft.
CP 20-30
Fig. 30—Positioning Upper Control Arm Shaft (Steel Bushings)
■ 2 % a '
LIGHT DUTY TRUCK SERVICE MANUAL