Hi, Paul....I have a 13B with the Ross reduction drive. It is, unfortunately stock, unmodified. I
understand from monitoring this list that a thrust washer or thrust bearing? modification is
desireable.  If you know of anyone who might be able to help with this mod, I sure could use the
help. Thanks in advance for your reply. Paul Conner, SQ2000 builder

Here are some more pics of various modifications.
You will probably have to shorten the sun gear by grinding it to get
room for several needle thrust bearings. Perhaps you can talk
Tracy into doing it as he has done several before.

Paul Lamar
 
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