Do these exist?

Measure the axial location first since many people wind up with a "fan too close" issue. If so, many go to a shorter Jaguar clutch/fan. Don't know the diameter, but many posts to search.

I'll be buying a shorter Jag clutch for that purpose. I only have 3.25" from water pump to radiator core. Too bad no one makes an HD clutch with a short shaft.