Damn good info @numby, really appreciate the link.Hate to add more rivet info to your thread but I happened to have this book-marked...in case others might need it.
Greetings. I purchased a 1974 FJ40 as a project for my oldest son and I to work on. The truck is red and virtually rust free. The truck had a V8 conversion where the front motor mounts were removed and a Saginaw PS conversion. Whomever did the conversion did a pretty crude job that included...forum.ih8mud.com
It's a fairly recent post by @Efjayforty so the pics are good and there's a link to good video further down the page. There's also a link to the place he sourced the rivets that seems to still be up.