I did it on my '98 12v but being so long ago I can't remember if I had the trans out or not at the time, jacked the engine up a bit to gain some clearance, but I think I had the trans in, well maybe. 
Can the pan come out with the trans and adapter removed and by just jacking the front of the engine up on the damper to tilt it back for crossmember clearance? It looked llike it had enough clearance when I pulled the trans out and tilted the engine back..... anyone have experience doing it that method? Just want to remove pan bolts n oil pick up bolts n slide it back off the engine..... also want to avoid jacking the engine up since I have no room where truck is parked to move engine hoist in:{
Thanks guys,
Joe

Can the pan come out with the trans and adapter removed and by just jacking the front of the engine up on the damper to tilt it back for crossmember clearance? It looked llike it had enough clearance when I pulled the trans out and tilted the engine back..... anyone have experience doing it that method? Just want to remove pan bolts n oil pick up bolts n slide it back off the engine..... also want to avoid jacking the engine up since I have no room where truck is parked to move engine hoist in:{
Thanks guys,
Joe