Originally Posted by GearHd6
Yeah the cross members that hold up the holding tanks are real rough looking. I'm scared of how rusty they are on the inner areas towards the tanks where I can't see.
Those are most likely just stamped sheet metal. If you go to LCI's site in the store section under chassis components, they offer a few different types. One is actually called a tank support and another a floater. All that stuff is way overpriced though. As an example they have a 4X4X92 bumper tube for $157 that you can get at RV Factory Surplus for $65 or they sell a Schwintek slide controller for $426 that I can find for $175 or less.
If you can weld, two pieces of 1 1/2" angle and a few pieces of plate you can make your own that would be much stronger.