GMC 1986 P-Truck Service Manual page 337

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Tighten
• Nut (299) to 135 N-m (100 ft. lbs.).
5. Cotter pin (298) into the nut (299).
• Do not loosen the nut. Apply additional
torque, if necessary, to line up the hole in
the ball joint with the slot in the nut.
Apply the final torque to the lower ball joint nut
6
.
(292).
$ Tighten
• Nut (292) to 95 N-m (70 ft. lbs.).
Steering arm (297) to the steering knuckle (274).
• Adapters (296) and NEW nuts (295).
Tighten
• Nuts (295) to 120 N-m (90 ft. lbs.).
8. Tie rod to the steering arm (297).
• Refer to STEERING LINKAGE (SEC. 3B1).
9. Spindle (265) to the steering knuckle (274).
• Refer to " Spindle," in this section.
10. Wheel hub/rotor assembly.
• Refer to " Wheel Hub/Rotor Assembly," in
this section.
11. Adjust the wheel bearings.
• Refer to " Wheel Bearing Adjustment," in
this section.
12. Locking hub assembly (249).
• Refer to FRONT AXLE (SEC. 4C).
13. Wheel and tire assembly.
14. Check the front end alignment.
• Refer to FRONT END ALIGNMENT (SEC.
3A).
15. Lower the vehicle to the ground.
K30/3500 SERIES VEHICLES (WITH KING PINS)
Remove or Disconnect (Figures 37, 38, and 50
through 53)
Tools Required:
J-26871 King Pin Socket
• Raise the vehicle and support with suitable safety
stands. Remove the tire and wheel assembly.
1. Locking hub (249).
• Refer to FRONT AXLE (SEC. 4C).
2. Wheel hub/rotor assembly.
• Refer to " Wheel Hub/Rotor Assembly," in
this section.
3. Spindle (265).
• Refer to " Spindle," in this section.
4. Upper cap (273) and/or steering arm (290).
• For the cap, remove the bolts (271) and
w a sh ers (272)
compression spring will force the cap up.
a lte rn a te ly as the
FRONT SUSPENSION 3C-51
Figure 50—Removing The Cap
And Steering Arm Fasteners
• For the steering arm, remove the nuts (291)
alternately as the compression spring will
force the steering arm up (figure 50).
5. Gasket (289), and compression spring (288).
• Discard the old gasket (289).
6. Lower bearing cap and king pin (285).
• Bolts (271) and washers (272) (figure 51).
7. Upper king pin bushing (287).
• Pull it out through the steering knuckle
(274).
8. Steering knuckle (274) from the axle yoke.
• Seal (301).
9. Upper king pin (279) from the axle yoke.
• Use a large breaker bar and J-26871 (figure
49).
• Apply 677-813 N-m (500-600 ft. lbs.) of
torque to break the king pin free.
274. Steering Knuckle
285. Bearing Cap and King Pin
Figure 51—Removing The Lower Bearing
Cap And King Pin
B-07453