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The '63 Corvette front suspension is the '63 Impala suspension, except the left passenger side is the right Corvette side.
So while the basic items are the same, they are not the same parts. The tabs and brackets welded on for the anti-roll bar, steering stops, and so on are on the wrong side of the passenger car items to use on a Corvette.
So you have to use the '63 to '82 Corvette items. Not a big deal, they made a lot of them and have crashed a bunch, too. They are available. Just check ebay for the many project cars.