Weld on sway bar tabs

If you're concerned with them looking original, you'll have to find a set of original tabbed LCA's.

If you just want them to work, the ones made by Hotchkis will work just fine. They just don't look original. Bergman Autocraft also makes a set of tabs, not sure if they're the manufacturer or just selling the Hotchkis parts though.
I really don't think so, without a lot of grinding on them, to mate up to the bottom of the LCA, not like the B body one's, welded on the top end of the arm.
But i personally never have tried to weld B body ones on, for an A body application sway bar.