GMC 1986 P-Truck Service Manual page 308

3C-22 FRONT SUSPENSION
J-24435-3 Lower Control Arm Bushing
Remover
J-24435-6 Lower Control Arm Bushing
Spacer
J-24435-7 Lower Control Arm Bushing
Fixture
If just the bushings (46) or the pivot shaft (50) need
replacement, the lower control arm (36) does not have
to be removed from the vehicle.
• Raise the vehicle on a hoist and support the
frame so the lower control arms hang free.
CAUTION: Failure to install J-23028-02 to a
suitable flo o r jack could result in personal
injury.
1. J-23028-02 to a suitable floor jack and raise it into
position [under the lower control arm (26)]
inboard of the spring and into the depression of
the lower control arm.
Im portant
• Install a chain over the upper control arm (28)
inboard of the stabilizer bar (59) and outboard of
the shock absorber (20).
2. Shock absorber (20) from the lower control arm
(28).
• Nut (23), washer (22), and bolt (21).
3. Stabilizer bar (59) from the lower control arm (28).
• Nuts (38), washers (39, 41), clamp (42), and
bolts (43).
42. Pivot shaft end nuts (24).
• Loosen only, do not remove.
5. Lower control arm from the frame.
• Nuts (49), washers (48), and U-bolts (44).
• SLOWLY lower the floor jack until all
compression is released from the spring
(32).
6. Stakes on the front bushing.
• Use J-22717 or an equivalent tool.
7. Bushings (46) and the pivot shaft (50) from the
lower control arm (36).
• Use J-24435-2, J-24435-3, J-24435-6, and
J-24435-7 (figure 22).
• Tighten the bolt on J-24435-7 to remove the
bushing. Discard the old bushing.
• The pivot shaft (50) will slide out of the lower
control arm after one bushing is removed.
• Leave the pivot shaft (50) inside the lower
control arm (36) to remove the remaining
bushing.
+♦- Install or Connect (Figure 5, 8 and 23)
Tools Required:
J-23028-02 Coil Spring Compressor
Figure 23—Installing The Lower Control Arm
Bushings (C10/1500, G10/1500-20/2500 Series)
J-24435-4 Lower Control Arm Bushing
Installer
J-24435-6 Lower Control Arm Bushing
Spacer
J-24435-7 Lower Control Arm Bushing
Fixture
NOTICE: For steps 3, 4, 5 and 6, refer to the
"Notice" on page 3C#1 of this section.
1. Bushings (46) and the pivot shaft (50).
• Use J-24435-4, J-24435-6, and J-24435-7
(figure 23).
• Tighten the bolt on J-24435-7 to install the
bushings.
• Install one bushing, then insert the pivot
shaft and install the remaining bushing.
• Make sure J-24435-6 is in position to
prevent collapsing the control arm.
2. Stake the front bushing in at least two places.
CAUTION: Failure to secure J-23028-02 to a
suitable flo o r jack could result in personal
injury.
3. Lower control arm (36) to the frame.
• SLOWLY raise the floor jack until the front
indexing hole in the pivot shaft (50) lines up
with the crossmember attaching studs.
• Do not damage the ball joint (37).
• J-23028-02 is bolted to a suitable floor jack.
• U-bolts (44), washers (48), and nuts (49).
Tighten
• U-bolt nuts (49) to 115 N m (85 ft. lbs.).
4. Pivot shaft end nuts (24).