Must be a rear bath ?
AS has a kit that prevents this from happening. I had the kit installed as soon as I noticed a buckel at the rear wheel area.
I had the work done by an AS shop in Oklahoma City..
A local shop that works on AS's said they never install the kit but weld a homemade support bracket onto the frame. I did not trust the homemade fix. I think the kit is around $700.
I think Andy will know the answer to this one. But my take is once the frame brakes/separates you will be looking at some frame welding.