looks like I covered the aftermarket option in post #3:thumbsup:disagree if you want but if he cuts the 73+ tabs off 72 back tabs will have to be used to use the 72 back factory bar
You didn't "cover it" at all. You alluded that there might be aftermarket bars that would work. Then you said the "best bet" is to cut the tabs off, which is completely untrue.
There ARE aftermarket bars that will bolt right up. The one's I provided part numbers for. And, if he wants to run a factory bar what he should do is remove and sell his tabbed LCA's, because they're worth 3x what a plain set is worth. He could buy new tabs and pay himself a $100 to weld his own on a plain set of LCA's. Cutting the tabs off and using the hokey bolt on tabs is a flat out terrible idea. Cutting the tabs off and welding on aftermarket tabs is a bunch of extra work.
Or just buy one of the aftermarket bars that will bolt right up to the 73+ tabbed LCA's he already has installed on the car and call it a day. Not only will there be no welding involved, he'll get a better sway bar than the factory every used. That seems like a better bet.
