So I just put a new starter solenoid in my 1987 F250 6.9L. It went fine except for finishing and realizing I hadn't connected the engine block ground cable from where ever I took it off from while getting everything off the starter solenoid. Now I have no idea where that's supposed to connect! Help anyone? Sorry it's such a dumb question. I just don't feel like shocking myself or starting a fire.
I did start the truck before realizing I didn't have it connected and it was reading off the voltage meter. Hope I didn't damage anything.
Here are two pictures. The first is me holding the cable that I don't know where to put. The second picture shows it on the right side along with the rest of the battery setup.