I have 19 spline Arneson drives. Way more 26 spline surfacing props available.

Heard there was an adaptor, but it required some mods.

I assumed the adapter would slip on and I would maintain the ability to use 19 spline props.

Yes that's how they work. Reach out to Rik, he may have some.

$800 each FYI

I think I have one kicking around Send me a PM and I’ll check for you

I actually have adapters I had made for fit #6 props to 19 spline asd that I'm still testing since both Rik and Brett at Bblades weren't able to locate them, the only problem is finding props that work with my setup.

I have a pair I would sell, but they come with the drives!