Just pull the trans and you are good to go. Make sure you have a new rear main and install tool for it as well as two new o-rings for the coolant port crossover, new gasket and square o-ring for the oil cooler elbow (has to come off to get the plate off) and a new turbo drain gasket.
you MUST drop the lower oil pan to get the 4 bolts out from the upper pan that go into the bottom of the plate.
Also, remove the rear main before pulling the plate, then pry the plate free from the silicone from the top and hold it forward. once you work it free, lift the plate UP while its leaned away from the engine and then pull it off. There are 2 dowels in the upper oil pan that go into the bottom of the plate and the back of the plate has two dowels that hold it in place to the block.