Feel free to add info---

I have the following Hydra-matic manuals in the online library @
http://hetclub.org/burr/lithomepage.htm

1951 Hydra-Matic Drive New Car Inspections and Adjustments
1951 Single Range Hydra-Matic Service Manual
1952 2nd Series Transmission and Rear Axle Service Manual

Upcoming in the near future will be a 1956 Technical Service Manua supplement "Hornet" Special V-8 which has a large section on the hydramatic, including flow diagrams.

Hudsonly,
Alex Burr
Memphis, TN

Alex, I have all the Hudson Motor Co manuals for Single and dual range info. In one it shows how the oil pressure works from idle to forth range. At our National I am going to put them up for sale. Too old to do any more work on them. Walt.