I believe you do. I didnt, but I had a body lift which I believe gave me just enough room.
You will need to do the following...
remove the starter
find each bolt from the torque converter through that starter hole, there are 4, so you will need to turn the crank by hand with a wrench. until you remove each nut.
remove the transfer case
remove tail housing bolts
for the most part that should get it out, if not close. that should help some.