tracked down the splice / coupler along the route going to the axles. It was tucked in behind the cable runs / plastic sleeving for all the wiring running along the trailer frame.
So basically, the main run from plug gets to the front axle where is it split in two between the front and rear axles. At each axle there is a second splitter that splits the wiring for each side. All look original so without redoing all the connections and probably wiring (as suggested) maybe the 1.0 ohm is it.
Based on Steve's posts, it would appear that's where he ended up at.... maybe his is a bit better depending on what the voltage was at the battery.
