67 Barracuda rolling resto

Got my K frame out today. I drilled a tiny hole in the frame and pre-oiled the top end of the 4 mount bolts last week in attempt to help them break free easier. They all came out but none of the threads showed any evidence of penetration by the Aero-Kroil. Thought that stuff was the cats meow, especially after paying for it. Talked to the machine shop and they can hot tank the k frame for me to get rid of all the soaked in oils before I start welding on it. Got to disassemble it first.