I've just been able to get back to my truck upgrades. It's been a busy year so far. I was checking my power steering fluid level and noticed that one of my ground wires did not get hooked back up. This is the shorter small ground wire on the drivers side battery. The longer one goes to the frame. Does anyone know where this shorter cable is supposed to be bolted down? 

There’s a stud underneath the drivers side battery tray, might be the one. You should be able to see it with a flashlight.