I was actually planning on putting a plate in there for that reason but, I had extra 1 1/2" tubing for sleeving the sections that I cut out so I just ended up sleeving it from one bend to the other. It's very solid. As far as making more to sell, nah. I made these as a project for my chassis fab class and after graduation tomorrow I will no longer have access to the shop so I won't be able to make more. And really, these are pretty close to the Rocky Road sliders and I wouldn't want to steal their thunder. Plus, between materials and hardware, these cost almost as much as theirs.