I did try this once with a beam but I wasn't successful. I can't remember exactly but I seem to think it was something to do with not being able to get enough leverage/room to force the gearbox off the side of the engine. I only had axle stands so not easy access. I remember thinking at the time, if I try that again I will simply drop the engine and gearbox together and split them on the ground. I've dropped the engine and gearbox before without moving the subframe - however you need to take the radiator out and you need a hoist. Never used my beam since lol, I don't where I put the feet but it was fine.