that ain't no lie.
Be ready with about 4 feet of extensions to get a socket on about the highest 4 bellhousing bolts. I found it more effective to get the socket onto the bolt head, then go topside and operate the ratchet through the shifter hole in the floorpan.
Support the back of the transmission and remove the crossmember, and lower the tail end of it to get some more clearance beween the tunnel and the transmission case. Rather than using up floor space with a jack, I ran a ratchet strap around both frame rails and under the transmission, so I could tighten and loosen the strap to raise and lower it.
If you have the M5OD it will be hell getting the bellhousing between the firewall/tunnel and the exhaust crossover pipe. It's possible, just requires a lot of twisting, turning, and manipulation. I've done it twice and the second time was no easier. Can't even begin to remember how I got it out other than just messing with it for half an hour. I've heard the earlier transmissions have smaller bellhousings and may be easier.