Hello all, just joined and having a few questions that I can’t find the answers to. I bought a 1979 Custom Deluxe K20 4x4 Longbed manual transmission from a guy a few weeks back. It started up fine and drove fine for a few miles until I stopped to get gas. Once filling up and starting up again, I was driving down the road and started hearing popping noises from what sounded like the ends of the exhaust under the cab. It stopped accelerating so I pulled over to the side of the road where it stalled out. When I went to start it back up it gave me nothing but a single click. Ended up towing it home where I tried jumping it but still just a single click. After replacing the starter, battery, and alternator it doesn’t even give me that single click. I have tested the battery and cables running off of it and it’s still good. The starter is still good as is the connection point for the battery and the purple wire running directly to the ignition. We jumped the starter and it will attempt to turn so it’s not that, and the previous owner bypassed the clutch safety switch but when I checked those wires they were still good. I went ahead and installed a new ignition switch as well as replaced all of the fuses that were in the fuse box. As far as I know there shouldn’t be a reason it’s not at least trying to crank, but it’s dead silence every time. Any help would be greatly appreciated.