GMC 1986 P-Truck Service Manual page 312

3C-26 FRONT SUSPENSION
Figure 28—Removing The Upper Control Arm
Bushings (C10/1500, G10/1500-20/2500 Series)
J-24435-3 Lower Control Arm Bushing
Remover
J-24435-7 Lower Control Arm Bushing
Fixture
1. Upper control arm (28).
• Refer to " Upper Control A rm ," in this
section.
2. Nuts (24), bushings (26) and the pivot shaft (29)
from the upper control arm (28).
• Use J-24435-1, J-24435-3, and J-24435-7
(figure 28).
• Tighten J-24435-7 to remove the bushing
(26).
• Pivot shaft (29) can be pulled free at this
time.
• Repeat this procedure on the remaining
bushing (26). Discard the old bushings.
Install or Connect (Figures 5 through 8, and
29)
Tools Required:
J-24435-4 Lower Control Arm Bushing
Installer
J-24435-5 Lower Control Arm Bushing
Installer
J-24435-7 Lower Control Arm Bushing
Fixture
NOTICE: Refer to the "Notice" on page 3C#1
of this section.
Bushings (26) and the pivot shaft (29) into the upper
control arm (28).
• Use J-24435-4, J-24435-5, and J-24435-7
(figure 29).
J-24435-4
J-24435-5
(Hidden)
Figure 29—Installing The Upper Control Arm
Bushings (Cl 0/1500, G10/1500-20/2500 Series)
• Tighten the clamp (J-24435-7) to install the
bushing (26).
• Slide the pivot shaft (29) into the upper
control arm (28), then install the other
bushing (26).
• Nuts (24) in place.
Tighten
• Nuts (24) to 156 N m (115 ft. lbs.).
2. Upper control arm (28) to the crossmember.
• Refer to " Upper Control A rm ," in this
section.
3. Caliper if it was removed.
• Refer to BRAKES (SEC. 5).
4. Check the front end alignment.
• Refer to FRONT END ALIGNMENT (SEC.
3A).
5. Remove the supports and lower the vehicle to the
ground.
CP20/2500-30/3500, G30/3500 SERIES VEHICLES
+ + Remove or Disconnect (Figures 5 through 8)
• Raise the vehicle and support the lower control
arms with a floor jack positioned under or near
the ball joint assembly. Remove the wheel and
tire assembly.
1. Loosen, but do not remove the pivot shaft to
frame nuts (27).
2. Shim packs (18).
• Tape each pack together and mark their
1.
position to assure exact replacement during
installation.
3. Pivot shaft to frame nuts (27), bolts (4), and
spacers (19).
B-07481