The unbelievable happened. Our glass carousel cooking tray developed a crack. Each day the crack got longer. I ordered a new one on Tuesday and it arrived the next morning just before the cracked one completely cracked. I have never experienced such fast service. I highly recommend PartSelect and their helpful service.
First I unplugged the microwave. :) Then, I removed the 6 screws found underneath the microwave, which allowed the bottom piece to hang down so I could see the turntable motor. I took the two screws out holding the motor in place and pulled the electric connectors off the motor terminals. Then I got the new part from PartSelect.com, replaced the electrical commectors, fit the motor back into the slot it came from (cause the pin has to be seated up in the hole) and replaced the 2 screws holding in the motor. Then I put the bottom metal piece back up and put the 6 screws back in. It was really easy - and I'm a chick! ;)