What you see is a vintage Doodlebug scooter fluid drive that fits the Briggs kickstart or Clinton kickstart motor that had the 5/8” threaded crankshaft. I installed it on one of my doodlebugs before listing it and it performed nicely. I’m a big guy and it seemed to pull me ok. If your looking and reading this ad you know all about these and they only somewhat worked if you rebuild them. That said it’s only been sitting on my shelf and it needs to be back on a bug. Comes with the crankshaft bushing. Please add .50 for shipping.