1990 C Truck Ball Joint Replacement
Figure 2:
BALL JOINT REPLACEMENT, UPPER ONLY: 1990 C TRUCK
Required Tool: J-23742 Ball Joint Separator
1. Raise vehicle and support it with safety jack stands.
2. Support lower control arm with jack and secure spring with safety chain.
NOTICE: Jack or stand must remain under lower control arm spring seat during removal and installatlon to retain spring and control arm in position.
3. Remove wheel and tire assembly.
4. Remove brake line support (Fig. 2, 86) from upper control arm (Fig. 2, 42).
5. Remove brake caliper and rotor.
NOTICE: Support caliper with a piece of wire to prevent damage to brake line.
6. Remove cotter pin (Fig. 2, 68) and stud nut (Fig. 2, 67) from upper ball joint (Fig. 2, 66).
7. Remove upper ball joint (Fig. 2, 66) from knuckle.
a. Support knuckle assembly.
Figure 3:
b. Use J-23742 as shown in Figure 3.
c. Inspect tapered hole in knuckle and remove any dirt. If hole is out of round, deformed or damaged, knuckle must be replaced.
Figure 2:
8. Remove rivets from upper ball joint (Fig. 2, 66). If ball joint has been previously replaced, remove bolts and skip to step 9.
Figure 4:
a. Use a 4.763 mm (3/16-inch) drill to cut a 6.35 mm (1/4-inch) deep hole in center of each rivet (Figure 4).
b. Drill rivet heads away using a 12.7 mm (1/2-inch) drill (Figure 5).
Figure 6:
c. Punch rivets out using a punch (Figure 6).
Figure 2:
9. Remove upper ball joint (Fig. 2, 66).
10. Install new upper ball joint (Fig. 2, 66) to upper control arm (Fig. 2, 42).
Figure 7:
a. Position four attaching bolts (pointing upward), washers and nuts (Figure 7).
b. Tighten nuts (A) to 23 N-m (17 lb.ft.).
Figure 2:
11. Install new upper ball joint (Fig. 2, 66) to knuckle.
12. Install upper stud nut (Fig. 2, 67) and new cotter pin (Fig. 2, 68).
a. Tighten stud nut (Fig. 2, 67) to 100 N-m (75 lb.ft.).
b. Align slot in stud nut with hole in stud by tightening stud nut.
c. Bend pin ends against stud nut.
13. Install brake rotor and caliper.
14. Install brake line support (Fig. 2, 86) to upper control arm (Fig. 2, 42).
15. Install wheel and tire assembly.
16. Repeat above procedure for opposite side of vehicle.