Silverado 1500 2WD V6-4.3L (2007)
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
6. Remove the oil pan skid plate and bolts, if equipped.
7. Remove the negative battery cable bolt (2) from the front of the engine block.
8. Reposition the negative battery cable terminal (1) and the engine wiring harness terminal (3) from the engine block.