Can a higher receiver cause sway?

Thanks for the info. Yes, struts in the front, coils on the rear. Softer suspension and possibly tires are probably the remaining culprits. Main thing is, I now feel much safer than before. Hindsight tells me a different vehicle would be desirable. But it is what it is for now and we still have a Suburban for other use. (like kids and whatever). Thanks. Happy Camping.