Joe Souza reduction drive

[overtime]

I have been running a Joe Souza redrive on a Subaru EA81 for a few years now and would like to obtain a replacement Mercedes flex coupler and splined 3 arm rotor for the drive. Joe was active in both gyroplanes and hotrods and my searches within these interest groups for contact information have all deadended. So does anyone know:

1) what model and year the drive coupler is
2) contact information for Joe Souza

[Matt Gonitzke]

That rubber coupler looks an awful lot like what is used on the Stemme S-10 motorglider driveshaft. Unfortunately, I can't remember the manufacturer of that flex coupling... It is German, if that helps at all.

[Mike Switzer]

It is also very similar to the coupler used on John Deere commercial mowers using the Yanmar diesel. What are the dimensions?

[Mike Switzer]

It looks like there are numbers on the rubber part in the first pic but I cant read them on this screen. If there are post them & someone may be able to steer you in the correct direction.

[Bill Ladd]

Get me a part number off the flex disc. I will find it for you.

[Mike Switzer]

It is probably a fairly common industrial drive coupler. Any local bearing / conveyor type supply house can probably get it if the parts guy knows his stuff.