if im not mistaken, you should already have removed the front DS when you did the SYE conversion.
thats how i did mine. not sure if you can get the rear output shaft drive chain off without removing the front yoke...
after i you install SYE and replace/reinstall yoke/DS, you just need a floor/trans jack to get your transfer case back up.
Also, do you still have the stock skid plate bolts? youll need them again, and hopefully, your nutserts are in good shape. Dont torque beyond spec!
I was so happy to get my t-case back up.
i have a question for you actually. Did you have to modify your stick shift after drop kit?
I think mine was "modified". I had to bend it back to a usable position.
unless i missed something