Engine ground strap

[eric8]

I have a 77 C10 that I’m pretty sure is virgin and unmolested. I noticed in the factory wiring diagram it shows what is supposed to be an “11 gage ground strap engine to body ground” connected somewhere toward the rear of the drivers side of the engine. Does anyone have a photo of how this is connected from the factory? Mine clearly has nothing back there resembling a ground strap. Everything on the truck works normal.