When I look at those dwg, I do not understand how the sun gear is
powered from the engine and rotates the planetary gear set. Spring
induce friction, that I understand but where is the part linking the
shaft to the torque assembly?


Would be great if someone gather a definitive set of drawing on a
final design of a gear box in order for all to be on the same page
and having the best of all these years of improvements and
thinking's....

Pascal (starting to be confused as well with all the sum of
information's....)


Does this help? Dwgs of Tracy's gear box.


Paul Lamar

Pascal , I would strongly recommend purchasing the six pinion gear
the ring gear (cover) and the middle piece. It less then $200,  It
will all become clear once you play with it :). The drawings pictures
etc will make sense.

Zahid Rahman


Thank you Paul

It is really helping. I want the 2.85 ratio. (ring gear fixed)

BUT where do I find the propeller shaft and the sun gear shaft. I
suppose those are custom manufacture as the sun Ford gear is not
machined on a shaft...

Is there a company in the US machining parts from drawings with
dimensions? (specially propeller shaft and sun gear shaft) I can find
in Europe of course, but would need precise dwg with dimensions on.
And also maybe you get a better price machining those in the US

Pascal Virlouvet,

Randy Kemph is gearing up for it.

Randy Kempf <naa73x@gmail.com>

Paul Lamar

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