Actually where the mounting system goes on the outfits being discussed here makes a big difference. The mount attachs to the rear hitch point and to the lower A-arms on the front. by attaching to the lower A-arms any weight you add by way of attachments is mostly unsprung weight.
OK. So now, rather than overloading everything in the front suspension, you just overload the front A-arms, spindles, hubs, wheels, and tires.
Well, at least you spare the upper arms and the springs. :lol: