Close coupling is a topic that comes up periodically on the forum, and we've seen a lot of great approaches over the years. I took the following photo for my own reference and thought it might be useful to a few others. Enjoy! Truck mounts left to right: Kato short shank #923500 / Fox Valley med shank #51010 / Fox Valley short shank 51000 / Kato Close Coupling #923090 Body mounts left to right: Micro-trains Z scale #905 / Micro-trains True-Scale #1300 / Fox Valley body mount #51060 (note: the Fox Valley couplers were previously sold also under the names Red Caboose and Unimate) DSCN0763 by NorsemanJack posted Jul 6, 2018 at 12:56 PM For truck mount comparison purposes, once installed the Kato short shank and Fox Valley med shank both provide approximately the same spacing between locos/cars. Similarly, the Fox Valley short shank and Kato close coupling also provide virtually identical spacing. For body mounts, all three pictured couplers provide essentially the same coupling distance (assuming the Fox Valley is mounted with the hole closest to the coupler).