There is two coils, hence 2 wires and the solenoid chassis grounded. One is the hold in , the other is the pull in. SO, still not comprehending how the pull in solenoid fires

The kickdown switch is a simple double pole, single throw switch, all poles normally open.

I believe what happens is that upon actuation of the kickdown switch, the solenoid pulls in , quickly opening a set of contacts in the solenoid which is part of the ignition circuit, co only temporarily shorting the coil out to reduce torque on the transmission, allowing the pawl to withdraw

I still haven't figured out how the pull in coil gets actuated. Car must be rolling over about 30 MPH, so there has to be a governor, internally perhaps? At any speed, any gear over 30, lift up on accelerator and the OD kicks in

I did see that there was a set of contacts inside the coil in a couple of manuals I have. One of the manuals says there are 2 sets of contacts.
As I had mentioned, OD is working, just wouldn't kick out but found and repaired that issue. Still do not recall ever hearing that solenoid in the past when setting the choke.
I suppose I could remove it and look inside to see which winding is heavier, but hate taking things apart that are working!
Remain confused on how the "Pull-In" coil gets actuated. Any ideas?

Thanks Howard! Bottom of page 213 explains what engages the OD. For my sanity, I will crawl under there and be certain I don't have the wires reversed.
I had the entire engine and transmission out 2 years ago and too advantage of that time to replace most of the wiring with "modern" vintage cloth covered wire.

I didn't even consider looking for my Motor's manuals as I had used the Serviceman's training booklet transmission and overdrive from Packard and used it as "bible"
Many thanks again Howard

Thanks again Howard, you must be 2 pages ahead of me in reading
I just found the internal contacts of the solenoid. One side of the Hold in solenoid is grounded and the other terminal is a post externally mounted.

Everything I am reading indicates the Pull In solenoid has the external terminal and then the other side of the coil goes thru some more internal points to an external governor on the speedo cable that kicks in at 22MPH. I don't have any external terminals, switches or solenoids other than the large one we are talking about here

I do want to mention, OD ki8cks in fine, just wouldn't kick out. Found teh OD switch was bad, which I repaired and the OD relay on the firewall was not working. Opened it up and it was rust encapsulated but was able to rebuild and get it to work too.
OD solenoid now clicks again when the OD kick out is depressed, can't take it for a drive, up on blocks waiting for the artillery wheels to come back from the powder coater and then put new Firestone 4" wide whitewalls on her, another week or two.

Awesome! You must be right, wrong manual, thanks!

Thanks again Howard, you must be 2 pages ahead of me in reading
I just found the internal contacts of the solenoid. One side of the Hold in solenoid is grounded and the other terminal is a post externally mounted.

Everything I am reading indicates the Pull In solenoid has the external terminal and then the other side of the coil goes thru some more internal points to an external governor on the speedo cable that kicks in at 22MPH. I don't have any external terminals, switches or solenoids other than the large one we are talking about here

I do want to mention, OD kicks in fine, just wouldn't kick out. Found teh OD switch was bad, which I repaired and the OD relay on the firewall was not working. Opened it up and it was rust encapsulated but was able to rebuild and get it to work too.
OD solenoid now clicks again when the OD kick out is depressed, can't take it for a drive, up on blocks waiting for the artillery wheels to come back from the powder coater and then put new Firestone 4" wide whitewalls on her, another week or two.

Was hoping I wouldn't have to crawl under there from someone with experience of this OD and the sound they hear with engine off and energizing the solenoid.

IF "Hold-In" coil is the coil that the kickdown switch disables, how does the "Pull-In" coil get energized?

I don't see a governor switch anywhere

Thanks Howard, that is also in the Packard Shop Manual on page 25.

Numerous schematics, depending on type o of OD and model are in the OD service manual

I can't ID which is the "SW" and which is the "IGN" terminal while on teh OD. Was hoping I did not have to pull it off. Can't really see it from under the car

I concur, mine has a flat bottom and two terminals. The third "terminal" is the chassis/OD

Which manual are you looking at?