After a year of getting my garage straightened out, I'm finally restoring and rewiring my 78 D250. You guys were very helpful in getting a lot or research material. I've looked through all the manuals for the D250 and only found wiring schematics/diagrams with a generator and separate regulator. I need the schematic for the D250 with an Alternator with built in voltage regulator. Any help would be greatly appreciated.