After seeing what the inside of the stock swinger looked like.....This will be much stronger. When I got the stock one cut open.....................I wondered why I was still alive. They make them as cheap as they can. I don't understand why they hold up as well as they do. Probably from lots of bracing. The inside was full of rust and the wall thickness looks to be about .090 max. The new swinger is made from .125 x 1” x 2” rectangular tube stock. I'm going to have to mill a relief for the stock axel mounts. This means the 2” thickness of the bar is thicker than stock. I did both of the rails today. I clamped them together and bored the hole in my Bridgeport, cut the hole in half, then cut to length. I did this so both sides would be identical. I should have the rest done tomorrow and will post pics.