My solution was: a lot of heat Used my propane torch and to protect brake lines, I covered them with my welders gloves, because I couldn’t find any plumbers mats. Each bolt took around 5-10 minutes of constant heating and then serious impact gun action, but I got there :)
Yeah, constantly checked if nothing was overheating. And the impact did very well too. I am surprised how hot it can get. The impact bit sometimes got too hot to the touch, so I had to stop so it could cool down