First build ,cat D11

[Cooper]

Yes that's what I'm thinking. I would love it if it had some squeaks to it. But tracks are aluminum and only materials rubbing are aluminum and brass. Most likely no squeaks. In time the clanking will get louder as tracks get more loose and worn. The sound speaker is going to be housed inside the cab, I may add some absorbent material in that area so it doesn't sound like a tin can. . Not the best for acoustics but it's on the minor side of things to worry about.