All those bolts you mention came free on my truck with just penetrating oil. A good ring needed for those swivel housing to axle bolts. Some shock helps.
Heat is your friend with stuck stuff as your neighbour knows. No head left, angle grinder...
Progress! .... Well, maybe, maybe not, will have a few more runs to see.
Despite me having timed the life out of the thing it has still been giving me trouble when I am trying to accelerate from modest speeds (e.g. 30MPH) if there is any "load"...