K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
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Ball joint is installed between flanges of lower control arm.
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Position four attaching bolts pointing downward, washers and nuts.
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Tighten nuts (A) to 60 N-m (45 lbs.ft.).
2. New lower ball joint (127) to the knuckle (117).
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Drive axle should be installed through the hub assembly at the same time.
3. Lower stud nut (131) and new cotter pin (130).
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Tighten stud nut to 128 N-m (94 lbs.ft.).
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Align the slot in the stud nut with the hole in the stud.
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Bend the pin ends against the nut.
4. Upper ball joint (115) to the knuckle (117).
5. Upper stud nut (129) and new cotter pin (130).
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Tighten stud nut (129) to 100 N-m (75 lbs. ft.).
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Align the slot in the stud nut with the hole in the stud.
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Bend the pin ends against the nut.
6. Washer (119) and drive axle nut (120).
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Tighten nut to 235 N-m (173 lbs.ft.).
7. Brake rotor and caliper.
8. Wheel and tire assembly.
9. Repeat procedure on opposite side of vehicle.
WARRANTY INFORMATION
Dealers should submit a claim on each vehicle completed.
LABOR
TIME
OPERATION
DESCRIPTION
ALLOWANCE
NUMBER
1988-89 C-Truck, Replace 4 Ball Joints,
1.5 Hrs
T7306
DELETE:
For EACH previously installed (bolted) upper ball joint
.1 Hrs
1988-90 K-Truck, Replace 4 Ball Joints,
3.9 Hrs
T7307
DELETE:
For EACH previously installed (bolted) ball joint
.6 Hrs
1990 C-Truck, Replace Both Upper Ball Joints,
1.1 Hrs
T7308
DELETE:
For EACH previously installed (bolted) ball joint
.1 Hrs
T7311
Check and adjust toe-in alignment
.3 Hrs
T7312
1990 ball joint wear check (2 or 4 ball joints)
.3 Hrs.
When used with T7307 or T7308
.2 Hrs.
T7309
Alignment Parts Kit Supplied to Customer
0.0 Hrs
Over the Counter-Use Kit Part Number
Owner Letter
Dear GMC Truck Owner:
Some time ago you expressed your confidence in GMC Truck Division through the purchase of one of our GMC Sierra pickup trucks. We appreciate
that decision and would like to advise you of a special policy covering the front suspension of your vehicle - specifically, the maintenance-free ball joints
and the front wheel alignment procedure.
