Ken Welter wrote:

  Ok I finally got the scoop on the truck transmissions.
  The Ford truck has a 5 speed stick that was made by Mazda and the
Mazda truck has an automatic that was made by Ford, now that one may
be made by Jatco.

Ken,
They tell me a Slausons, that they are exactly the same planetary!?
They are Ford type parts, I may be wrong but it sounds like Ford is
supplying the parts and Mazda is making the boxes - nothing surprises me
these days.

George (down under)

Actually some of the A4OD parts are made by Toyota as I recall.

To be clear the Jatco automatic and the C4/A4OD are very different
size transmissions even though the parts look similar.
Ken is talking about a 1/2 ton truck which is kind of small by US standards
so it could have the Jatco. The big 250 HP F250 turbo diesel with probably
close to six or seven hundred foot pounds of torque probably has
the A4OD with the six pinion planet carriers. When I was in Aus
I kept looking for pick up trucks that size and never saw one.
I saw some of 1/2 ton and 1/4 ton pickup trucks.

I did see plenty of 650 HP road train tractors however :) 

Here are a couple in Mount Isa.

Paul Lamar
 
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