Thanks Steve. Based on the measurements, if I were to use the BH with the large frame adapter on the 4310, the BH would be 5 inches further away. That does not sound good. I would be concerned about breaking the brackets on the tractor or the bracket mounting points on the tractor.
The part number BM19566 is the same as the one the dealer gave me.
Won't need the other measurements. Thanks and stay dry.
Jeff