Trying to remove all seat belts in 1972 duster.so far I have srayed with WD40 but overhead bolt broke the mounting bracket off that is welded in behind where you can not acsess.Worried about the other ones breaking off as dont know how to fix
WD40 is good for cleaning aluminum castings... not much more! PB blaster is what you need and even at that if you're busting off brackets I'd say you need the heat wrench to do the other one.