32-003 not strong enough - need one with above/below attachments.

My old chest has a 2" vertical brace with 32-003 rail supports attached to it with large staples. Over the years the 32-003's have failed at the box seam. I've replace them multiple times, but the wood brace is too narrow to attach using screws and the multiple outer holes. I think I need a rail support with attachments above and below, rather than on the sides. Do you have one that will work for 32-003 type rails?