6.1 Hemi 69 Barracuda Fastback Father Son Project

They do fit, they don’t have a metal ring or anything in them so the won’t clamp down on the ball joint like the original ones do. They fit most of the ball joints pretty tightly though once everything is assembled and they’re pushed down into place. Better than a torn boot but probably not quite as good as the original style.
I might try a little gasket adhesive and glue the boot onto the balljoint before I install it back on the car...