That got it only two swings, so I have this joint and spare axle, giving multiple options once I get a ride to the car.
First blow on outer joint rim, second blow onto inner cage/race and couldn't believe it popped right off.
Some threads mention doing this to replace the outer boot without removing the axle - but I don't see how it wouldn't just yank the axle and stub right out of the trans or hurt an MT doing that.
Thanks guys, appreciate it.