I have watched the disc brake one and the lowered front spring one for the '51 GMC (mostly to get an idea as to what the front shock position looks like. I'm changing my '47 1/2 ton from lever shocks to tube shocks). There aren't many pictures available of front shocks installed on AD trucks (at least that I could find) I find the videos give good information that, hopefully, will come in handy some day. But, like a lot of 'how to' stuff on line, they make it look easy.