Everyone, Thank you very much for that info. A few months back, I took this picture of the prop shaft I have vs. a new Imco shaft. I am not sure if this was an SCX shaft or a standard one. I know you can't see the spline for the driven gear, but can you tell if this is a Merc shaft or and Imco shaft from this picture?



Thanks,
Steve

The merc shafts have their part number layered on them