Good points Ascinder. I hadn't considered any form of added gusseting for strength since it's all a tight fit in that area. I don't think that the differential brackets really carry much of a load anyway. If you look at where they mount to the frame, there is a rubber bushing in there. If they were subject to loads that could potentially break a weld, they would be hard mounted to the frame (IMHO). I've had mine dropped for 6 months now & haven't noticed any signs of trouble.