I am doing my rear main seal right now 72 chevy 350 and I had to un bolt the motor mounts and jack my motor up about 2" to clear the hump on the oil pan. I just slid it on its side and it came right out. i jacked the motor up with a bottle jack and piece of 2x4. I placed the jack under the pulleys/harmonic balancer because I already had the pan off. It would be wise to lift your engine put wood blocks between the motor and mounts then let the jack down and remove the oil pan. I always do things the hard way lol!
