Sierra 3500 4WD V8-6.6L DSL Turbo (2007)
7. Remove the negative battery cable from the vehicle.
Installation Procedure
1. Install the negative battery cable to the vehicle.
2. Raise the vehicle.
3. Position the negative battery cable (2) to the engine block and position the engine wiring harness ground (4) on top of the negative battery cable
terminal.
Notice: Refer to Fastener Notice.
4. Install the engine wiring harness ground bolt (3).
Tighten to bolt to 25 N.m (18 lb ft).
5. Lower the vehicle.