[TechnicianBrian]

I find it easier for me if I leave it in place, but I have done a ton of these. The sump assembly will be removed from the inside of the tub, so you need to remove the racks, take off the wash arm, and remove the two screws holding the delivery tube to the rear of the tub. The tube can be split in two and separated from the lower part connected to the top of the assembly. The lower part will slide to the right and unlock from the top of the assembly. The wash arm connector will have a clear Mylar ring around it so don't lose it. From under the tub, remove the drain hose and the drain pump. The pump has a keeper in the upper left corner when you look at it. Press it with your thumb and rotate the pump toward you. It will separate from the sump assembly. Now the assembly is held in place with three white tabs, one directly above the drain hose connection, one 90 degrees to the left, and one 180 degrees in the rear. Just pull them out. Next place your hand under the assembly and push up until it pops out of the tub. The thermister and motor wire harness will still be attached. Remove the motor harness and rotate the thermister counterclockwise to release it from the sump. You should be able to remove the whole thing. Put the new on back in opposite of the way the original came out. Be careful of the while cover over the motor. It must go under the tub and not be pinched in between the sump and the tub. You may need to put some pressure on it to make it seat well since it is new. Connect the motor harness and install the thermister before pressing the pump in place. Put everything back together and that should do it. I had some students do this in class today and took some pictures. Hope they help.
TechnicianBrian