To graphically illustrate the small size and light weight of the
Ford planetary  set I held it at arms length and took the picture
with my other hand. Dozens of these boxes have been made by Ross
and Tracy with some of them giving well over a thousand hours
of service. Some very little but that is mostly a reflection
of Ross's quality control. They are remarkably efficient for their
size and weight. Here is a picture of the Power Sport guts for 
comparison.

Paul Lamar
 
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