I had to do this and yes it was a pain. I used an engine hoist and loosened up the transmision mount bolts so that the transmision would have some movement. I then removed the exuast from the engine, radiator hoses, starter,intake, and removed the motor mount bolts. With the car on (4) jackstands, I hoisted the engine up until it hit the firewall. I then removed the oil pan bolts and was able reach into the pan enough to remove the oil pump and get it out of the way. I then remove the pan and got the new one in place. Next I reached into the oilpan and re-installed the oil pump. from here it's just getting it back togeter. My advice, HIRE IT DONE...