All, Was able to get 37 Rio Grande TW quads today, at the Train Expo in Denver. Now, I have a quick question: Which side of car does the brake cylinder belong? All cars are in kit form, and all parts are in separate plastic bags, with NO instructions! And I'm not sure if I have that information on hand anywhere. And no, I currently can NOT check another car, since all my cars are currently in Denver! I'm gonna check one other source I have also. Still, information is much appreciated. Thanks.