Quote:
Originally Posted by kikkegek
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Yes that appears to be a relay, a 75A one at that. As for your alternator it should be connected to the battery using some heavy gauge wire like #4 or #2. On my 85 Burb with a 6.2L Diesel my alternator connects directly to the factory side mount on the side hand battery.
As for the junction on the firewall, it is simply an isolated 12v+ junction terminal, my truck has one as well, i have simp0le things like my horn and trailer plug 12v charge line attached to it by factory, and i have used it for things like my CB as well. The wires coming to and from it are DEFINITELY TO THIN for an alternator.
I noticed that your battery connections are not the factory side mounts that were originally covered in plastic. It appears to be an aftermarket connector crimped on with a standard crimper. Did you make that change?