Below, I have attached the directions for removing the transfer case from the vehicle. I believe this is what you are looking for. If that isn't correct, please let us know.
Take your time when doing this. You will need to support the engine at different points. Additionally, the exhaust manifolds must be removed. Lubricate them to prevent damage or one breaking.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.