Found a peanut, Found a peanut, Found a peanut just now!

First of all, glad you had the Ninja skills to avoid being stung by the hornets. Now for the truck. What year of truck is it? If the A518 is the electronically controlled governor, then I do not know of a kit that would do the conversion. If it is the hydraulic version, then it is fairly cheap to do. Hotwire Auto who is a sponsor here can most likely help with harness questions. As far as the real axle, it is most likely a Dana 70 or 80 with 8 lugs.