Don't even bother with that stuff (your life could depend on it), check these out: http://www.sky-manufacturing.com/new/detaproduct.php?id=135Bad news, looks like the pitman arm I had is missing. I read somewhere else that they just cut them in half and welded a ford end on the Toyota arm. I am not sure what material those arms are made of, but I think it is forged steel.
http://classicbroncos.com/forums/showthread.php?t=176573&highlight=toyota+steering+arm
I bought one of their arms several years ago when I did my Toyota's high steer.
Good quality, good prices, good people to deal with
Hans