There has obviously been a lot of time and thought invested in your truck. I noticed in the photo that you have a 250 amp fuse mounted below the solenoid. A friend of mine who wires race trucks told me about these breakers. He told me that they will trip if you have an issue, but the best part is, you can trouble shoot the cause of the trip without going through several fuses. They are also handy if you need to manually shut down a circuit. I did some research on my own. Some have said that a big enough surge can jump the breaker and prevent it from tripping but it was not proven, just speculation. So far, they have been solid on my truck. I run one between the alternator and the starter solenoid and one between the solar charge controller and the house battery bank.
