Trouble removing upper control arms, seized onto studs

[Greasey Harley]

I have had good luck removing seized fasteners by heating with a propane torch 'til its dull red, then dropping rapid tap on the bolt.
at first it will smoke , just keep dripping it on the threads, till it starts to "suck in". once that happens, keep adding more.
Let it cool completely before you try to remove it. Rapid-Tap has a high smoke point and penetrates well.

[kwmech]

pry bar between the frame rail and the shaft.... work it off. Keep the shims in order