68 Cuda grill studs............ Any tips ?

I let mine soak for days and then heated them up with a torch, then sprayed more penetraing oil, used graphite impregnated liquid wrench penetrating oil.
Grabbed tip with (good) vise grips and worked the nut tight/loose/tight /loose until it started moving, then kept wiggling it tight/loose all the way out, kept spraying to get the rust out and new oil in.
i ran a wire brush on the threads to get the rust off.
Some of the studs were too rusted and spun freely in the seat, some snapped off so I lost a couple studs along the way.


I'm sure there are some metal experts here that can tell you how to do it better than I..