"I ordered this motor two days before arrival. Immediately after arrival, I put it in to an already-made chassis for steering and it worked perfectly! It does make an odd noise while operating, like a high-pitched hum. It also hesitates slightly before coming to a full stop. It is funny-looking, as it has the overhang for the front and back outputs. It has 14 mounting pins not counting the outputs. Overall, this is a well-designed motor. Very sad that Power Functions are discontinued 2020."