I would say yes, it can be done with a tranny jack. I've done it with my ZF6. Jack the rear of the truck up as high as you can and it can come out thru the right rear wheel well. You may have to remove the wheel, but I did it with just a bit of jockeying with the wheel on.
I've also helped pull an E4OD out of an OBS truck using ratchet straps. Not recommended, but can be done. For that one we pulled the t-case off first. With a tranny jack, I leave the t-case and tranny together.
[on edit] There is a gasket between tranny and t-case. I've reused it except once when the tranny came with a new one. I suppose you could use RTV. It's not a pressurized joint unless the rear seal on the tranny goes.
I've also helped pull an E4OD out of an OBS truck using ratchet straps. Not recommended, but can be done. For that one we pulled the t-case off first. With a tranny jack, I leave the t-case and tranny together.
[on edit] There is a gasket between tranny and t-case. I've reused it except once when the tranny came with a new one. I suppose you could use RTV. It's not a pressurized joint unless the rear seal on the tranny goes.