I went to my P mechanic and borrowed a 3/4 inch breaker bar / 6 point 36 mm socket and a 4-5 foot heavy duty pipe and I put my weight(250lbs) on the end and bounced and it came off. The 1/2 inch bar broke off, two of them. I had to use a lock bar between the studs and anchored on the floor of my garage to counter the force I was giving. It was a really heavy bar.
Anyone use this helping hand ?