no, the only interior part you need to remove is the shift knob, shifter boot, shifter sound deading foam block, and the rubber boot below that.
Everything else is done under the car. The bolts that are on top of the tranny require a very long extension (or extensions) and a tight u-joint socket. Basically when I did it I removed the rear tranny brace and allowed the tranny and engine to tilt back, allowing for a little more room to get to the bolts on top.
"Driving is like a narcotic, an addiction that can take over lives. It ruins people, breaks families apart, and even kills. Itís habit that needs to be fueled. Time, money, rationality, sweat, knuckle skin, and anyone who disapproves are of little importance to a driver, and are often overlooked. Hi, Iím Nelson, and Iím a drivaholic."