With all of the “stock” wiring done I still needed to get my auxiliary fuse box installed and operational, it was now early August. The auxiliary box is necessary for a place to add in circuits for the electric choke, 2 speed rear and auxiliary brake booster. How it is wired: I mounted a 100 amp relay powered off of the positive battery cable, it connects to an 80 amp breaker; Both are screwed down to the passenger fender next to the battery.
The wire to energize the relay is connected to an unfused ignition tap in the fuse box in the cab. I used scrap wires from the 89 wiring harness to make all of this up and did the solder and heat shrink thing to all of it. I also added in a single blade fuse to the wire that energizes the relay, it is the bright green wire here: (You can also see the tach wire run through the same conduit – the brown wire)
Currently I have the wire to energize the relay and the power wire that feeds the auxiliary fuse box run between the hood hinge and the fender, at the very least I have to go back and wrap them with tape, I may still try to reroute them.
It all seemed like I was on a roll and I wanted the 2 speed rear functional again and I needed post terminals to connect the switch end to the rear harness like the factory did and all I could scrounge up was this piece off of an old electric range. It is functional but looks like crap and will get replaced!
To the right of the screw terminals you can see the 20 amp breaker that powers the two speed rear. I really wanted to use a blade style breaker like the 89 had stock but it would not fit in the fuse panel that I had added so I just used a typical 20 amp 12v breaker. After wiring it up I took it out for a test drive to verify that the two speed rear works, it does!
Enough for tonight, more to come. -Richard
-Richard