Hayman Reese weight Distributing Hitches have earned a reputation as the premier caravan safety product.
At ISP Islington I want to match the correct weight distributing hitch components with your tow vehicle and caravan and that's why I sell the kits and dropshanks seperately.
With both the tow car and caravan seperate and level, measure the height from the ground to the underside of the caravan's coupling head and also the height from the ground to the middle towbar's hitchbox (that's the 50mm square hole were the ballmount slides into). Now, compare the two measurements to determine which dropshank you need, simple!