Sierra Classic 2500 4WD V8-6.0L (2007)
7. Remove the forward lamp wiring harness ground/negative cable bolt.
8. Lower the vehicle.
9. Remove the negative battery cable.
Installation Procedure
1. Install the negative battery cable.
2. Raise the vehicle.
3. Position the negative cable and forward lamp wiring harness ring terminals to the frame.
Insert the anti-rotation tab on the forward lamp wiring harness into the hole in the frame.
Notice: Refer to Fastener Notice in Cautions and Notices.
4. Install the forward lamp wiring harness ground/negative cable bolt.
Tighten the bolt to 9 N.m (80 lb in).
Important: The engine wiring harness ground is to be installed under the negative cable ground.
5. If equipped with a 8.1L engine, perform the following:
1. Position the wiring harness ground and negative cables. Position the anti-rotation tab on the negative cable in the correct location.
2. Install the engine wiring harness ground/negative cable bolt.
Tighten the bolt to 25 N.m (18 lb ft).
3. Lower the vehicle.
4. Install the negative cable clip to the positive cable clip.
