The simplest explanation to determine the Direction of Crankshaft Rotation for ALL GM vehicles is to:
Follow
"The Right Hand Rule":
Using your
Right Hand... Make a Fist and set it down on the Cross Member above the Radiator...
Then Extend Your
Thumb Straight Out... In Line with the Driveshaft...
The Curvature of your
Fingers shows "The Direction of Crankshaft Rotation"...
It is CLOCKWISE...
The Position of your Thumb Points in the Direction that the Engine Torque Travels...
Done.
