I have been learning alot here at this forum. I have a coupla new questions. My lo boy is serial # 2986 J, (1956). I am looking for a new wiring harness as this one is falling apart. Listings show a 6, 7 or 8 wire harness. I can't really tell how many wires is on mine as some are cut off. Next question - I see there is a 184 and a 185 cub lo-boy. What is the difference?