My L2 exploded the right side brg mount for the main shaft was going to be aprox 7000$ in repairs so i traded my head for a rotary flex sold my salvage and bought an 1985 n5 looks real good looks like a western machine and has only done wheat and barley it says it has N6 updates what might they be doesn't seem to have any stacked helicals has feeder reverser no header height control anybody no where to source a header height control module ?? any feedback appreciated Karl