Sir, Interesting story as you transitioned from being airline maintenance mechanic to retiree & restorer of stuff like coolers & signs & now an Advance Design Series dually 6400 Chevrolet or GMC Truck. Welcome & reach out often. Why? You won't find anywhere folks that are more knowledgeable. Oh, we need to see pics of your project to help you more easily Thanks dsbike. V/r, Nick.