not any harder then under the truck..with the vise grips on it..there is no need to hold the dam thing till the job is done like you do with the string..or worry about the sick on the end twisting on you and letting the nut fall into the pan..the vice grips wont fit though the hole or let go of the nut till you make it let go....if the motor was on the bench..doing it this way would be a waste..you mights well drop the pan...