I build mostly rockcrawler stuff and we use tube only, but I've been wanting to build some lower fabricated arms. So how thick of material are you guys using for the sides? I'm thinking of using a piece of 1 1/2" .188 lower tube, and a 1" .120 wall upper tube and connecting them with some plate. I don't think the sides will be more than 2" tall and it would have a bridge design to it. My rear shocks connect to the link, but right at the base where it attaches to the axle.