Need advice on frame connectors

Will you elaborate on why the eng./trans. need to be in the car? Most of these guys have done theirs with the engine out and had no problems. I just want the best of both ends of this debate. Thanks.

You can use the jackstand method. You must make sure the car is level
front-to-back side-to-side. If it is not,the subframe connectors,when welded will hold it that way.

That is why I like to get the car in the position where it is going to set,and then weld them in.