Was troubled by tongue jack bottoming out on dips and speed bumps. This is a great answer! Very easy to install, the manufacture has a website that includes a video. Also, I can now use a yellow tongue jack "stool/perch" that requires very little jack extension, and thus, much more stability. Great answer, easy fix!
Jack-E-Up Removable Jack Bracket, Black - Jack-e-up Llc BLACK 5000 - Tongue Jacks - Camping World