![Lego Compact 3 Speed Automatic Gearbox Instructions - Lego Technic Mastery - YouTube | Lego mindstorms, Lego technic sets, Lego technic Lego Compact 3 Speed Automatic Gearbox Instructions - Lego Technic Mastery - YouTube | Lego mindstorms, Lego technic sets, Lego technic](https://i.pinimg.com/564x/8f/fe/8c/8ffe8c05d51b153b74f92adb8e7572af.jpg)
Lego Compact 3 Speed Automatic Gearbox Instructions - Lego Technic Mastery - YouTube | Lego mindstorms, Lego technic sets, Lego technic
![Sliding worm 3-speed automatic gearbox - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums Sliding worm 3-speed automatic gearbox - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums](http://www.brickshelf.com/gallery/Nazgarot/Gearboxes/3_speed_automatic_crawl_gearbox_with_spring_and_rubberband.png)
Sliding worm 3-speed automatic gearbox - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
![Simplest automatic LEGO transmission in the world? Really functional. Principle explained. - YouTube Simplest automatic LEGO transmission in the world? Really functional. Principle explained. - YouTube](https://i.ytimg.com/vi/TjhBIw50gFk/maxresdefault.jpg)
Simplest automatic LEGO transmission in the world? Really functional. Principle explained. - YouTube
![LEGO MOC Lego Technic lockable automatic two speed gearbox [with free instructions] by SJ_LegoFan | Rebrickable - Build with LEGO LEGO MOC Lego Technic lockable automatic two speed gearbox [with free instructions] by SJ_LegoFan | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-42462.jpg/1000x800.jpg)
LEGO MOC Lego Technic lockable automatic two speed gearbox [with free instructions] by SJ_LegoFan | Rebrickable - Build with LEGO
![LEGO MOC 2 Speed Automatic Gearbox - Smooth & Compact by TechnicBrickPower | Rebrickable - Build with LEGO LEGO MOC 2 Speed Automatic Gearbox - Smooth & Compact by TechnicBrickPower | Rebrickable - Build with LEGO](https://cdn.rebrickable.com/media/thumbs/mocs/moc-51810.jpg/1000x800.jpg)