Can you get the bolt to rotate with the T-55? Try doing that first as I've had better luck rotating the bolt to break it free from rust than trying to drive it out from the end to break the rust. Also, try heating the joint a small amount and then hitting with PB blaster as it will help to soak in better. Better yet, if you're not saving the strut get it nice and toasty hot then hit it with the blaster and socket.
Also, it wouldn't surprise me if the ball itself is also rusted to the housing along with the bolt. In that case you'll have to use Stazi's method of the wedge and crowbar.
Rick
