Thanks chief ill try those 2 approachesHave you tried knocking them with hammer to shock them a bit, it will only be rust on the threads stopping them from moving. And when I say hit with hammer I mean whack them with heaviest lump hammer you have. Have you had a 3/4” bar and pipe on them? Stick it back on tractor upside down to make it easier to work on.
Otherwise you need to warm the top clevis to get the bolts to move. If and when you get them to move, move them back and forty to loosen up. Please dont weld them, it’s a pet hate of mine seeing them welded as it just looks wrong and as you never know when you will need to remove one clevis if the machine has a pair o fixed clevises.
I think the heat is the only answer, I'll have to find someone with heating gear. There's a good chance these bolts are in place with over 40 years.Id go with heat rather than an impact gun or 3/4 with bar. If u broke the head off ur gonna be in for more head scratchin
You need someone with bottles