All I could find for C. W. McCall's "Wolf Creek Pass" were lyrics and this:
Now, there's a tough choice to make. They had to pick whether to produce this model with a refer with the "Wolf Creek Pass" graffiti, which connects it to the song but isn't accurate, or a flatbed with chicken crates, which would have been accurate but wouldn't have had any place to put the reference to "Wolf Creek Pass". Considerin' that limitation, I guess I can let 'em get away with the the refer, but I can't overlook the fact that there isn't a '48 Pete' tractor up front. M'fraid I'll have to dock their final score.