Thank you topgun2 for getting me in the right string. I think I’m starting to understand how the strings work. We are camping now in Nova Scotia, but when I get the covers off, I’ll take a picture.
I think I understand that Baker ships the jacks with vertical steel plates welded to the tubes and Oliver has changed to a single piece steel angle iron, which looks a lot stronger than the older ones.
Not sure about the square holes in the steel and iron? if I were making it, I would drill round holes and use regular Bolts and washers instead of carriage bolts.