C 3500 Truck 2WD V8-454 7.4L VIN J SFI (1999)
Shackle: Service and Repair
C 3500 HD, Only
REMOVAL PROCEDURE
1. Raise the vehicle on a hoist.
Support the rear axle independently in order to relieve the tension on the leaf springs.
2. Loosen the shackle to spring nut.
3. Remove the shackle from the following parts:
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The rear bracket bolt
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The nut
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The washers
4. Remove the shackle from the following parts:
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The spring nut
-
The washers
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The bolt
5. Remove the shackle from the vehicle.
INSTALLATION PROCEDURE
1. Install the shackle to the vehicle.
2. Install the shackle to the following parts:
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The spring bolt
-
The washers
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The nut
Important: Do not tighten the fasteners until all the parts have been assembled.
3. Install the shackle to the following parts:
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The rear bracket bolt
-
The washers
-
The nut
-
Tighten the leaf spring to bracket nuts to 415 Nm (306 ft. lbs.).
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Tighten the leaf spring to shackle nut to 213 Nm(157 ft. lbs.).
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Tighten the shackle to bracket nuts 213 Nm (157 ft. lbs.).
Notice: Refer to Fastener Notice in Service Precautions.
4. Adjust the spring height between the top surface of the axle jounce pad (3) and the bottom surface of the frame jounce bracket (6).