The gears were from Ford C6 transmissions.   The damper plate on my Ross was a marine drive part, or so I was told.  All the gears were modified except for the planet carrier so replacement is not a drop in job on the ring and suns gears.

The RWS drive had very different construction details, E4-OD gears so no compatibility between the two.

Tracy

Sent from my iPad

On Aug 18, 2015, at 10:51, Patrick Panzera <flyrotary@lancaironline.net> wrote:

Friends,

I got the following email and need your help answering his questions.

Thanks!

Pat

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Hello Patrick

We talked up at Oshkosh about the Ross aero Drive unit , and that I was looking for internal parts.

I have a EJ 22 Subaru engine with the Ross drive on it and I've got about 780 hours flying behind it with no problem so far. I've been searching online different chat rooms asking if anybody has rebuilt one and trying to find out information about the part and the part numbers.

I know Tracy with his Mazda engine combination said he had rebuilt a Ross Drive and made some improvements on some of the internal parts. We had talked on the phone a couple of times and you asked me to send you an email to see if you could find out information you might have.

I've been flying with this Ross Drive for 15 years now and I'm desperately seeking any information on internal parts from any source that I could find to rebuild my unit.

I've been hearing the flexible clutch plate attached to the flywheel is really important to replace but nobody seems to know what it is her part number.

Some people think it's from a Chevy inboard outboard boat some people think it's from the Ford transmission.

Patrick if there's anyway you can help find out any information for me I would really appreciate it thanks for your help