Yes and I forgot the truck has some of both. Cab wiring is a combination of 82 and something else, possibly 83. Chassis wiring is 83 and engine bay is the after 84 with modifications. Hey if you don't like something just change it.Damn, they musta changed after 84.......... oops.
There is a spring loaded (kinda) plastic lever tab that locks into the hole. Kind of a one way sort of thing, if you can slide a thin flat probe from the back (out) side it should release the lock tab.
Yeah, best to leave the crack pipe down until you're finished!It's been awhile since I put in an update. So here it is... I have been working on the wiring issues. Looks like whom ever worked on the pickup got the engine side bulkhead connector out of a 6 cylinder automatic truck with cruise control. Not that it matters but the wire labels on some of the wires don't match a 318 4 speed. But that's what schematics are for. So attempt #1. I think I found some crack to smoke before I started. I don't know what I did, or how I did it. But I made everything worse. I thought I needed a new starter, so I bought and installed one. That was not the problem. I thought, maybe a bad battery, nope. Luckily I didn't buy a new one. Turns out that in my crack fueled frenzy of wiring madness I managed to wire everything that needed power straight to the battery. Now there is too much draw on the battery to even turn the engine over. I suck!!! Now that I think I'm sober enough to actually read through the schematics. I have realized what my problem is. ME So I ripped out all the BS I caused and started over. Attempt #2, actually reading and understanding the schematics, who would have thought that this might work. Now as per the schematics I have the Negative side of the battery going where it should, and the Positive side going where it should. I'm currently working on the Alternator connections. The big black wire is hooked up, the green wire is hooked up, and all that's left is the red wire. I ran out of wire so that's where I have stopped. But it is currently to freaking cold outside to work. I'll put another update if this works or not.