Morgans wrote:
"Anthony W" wrote
Ford used a set up like this in the transfer case on some 4 wheel drive
trucks so the parts could be available that way...

The problem there is that both sprockets are the same size, so no prop
speed reduction, there.

I don't know about all of the Chevy front wheel drive cars, but I think they
use hy-vo chains on them. I know the Chevy Citation automatic transmission
used them. I had one fail, after it was side loaded in a collision.

I never had the Ford that I had apart so I can't say for sure but odds
are if someone really wanted to go that route, you could scrounge up
sprockets of various sizes.

I'd rather use a Harley belt primary drive. It's an off the shelf set
up that would require minimal machining to adapt to the purpose. Off
the top of my head, I'd say the reduction is better than 2 to 1 and
replacement belts can be purchased in any city in North America if you
didn't want to bother with mail order.

Tony