gnathv
Full Access Member
Wd40 is good but there are better products for penetrating rusty metal. I like 50% acetone and 50% automatic transmission fluid, it just works. I’d get a better penetrant and get a 32 oz machinist hammer and hit the flat face between the studs. Be patient, beat a bit then add penetration oil let it sit and repeat. I would also try a sharp chisel between the two flat faces. If this doesn’t break it loose, add heat.