Mike, I've rewired a number of stepdowns and really the 1950 model is not that bad. remove the face panels and speedo on the dash and it really helps. having a driver side dash glove box door is another plus. If you were going to an origional reproduction either Rhode Island Wiring or Y and Z will do just fine. I do stock only. If you really want fun and giggles try the 1954 Hudson.

Thank you - I can’t reLly swing $1400 for a wiring harness . I will likely just use the painless harness I have .

Does anyone happen to have a wiring diagram for the OD system for a ‘50 ? My solenoid looks like this .

Here's one for the '50 and later cars, Mike. Ignore the text . . it relates to 12v conversion. <img src=" https://wordpress.hetclub.org/wp-content/uploads/wpforo/attachments/OD Cntrl - std KD.doc]

My car is a 50 but I have 4 prongs on the OD solenoid .... how much different is the wiring ?

What you pictured appears to be a governor, not the OD solenoid. Your transmission rear-end picture does not show the OD solenoid (which should be on the opposite side of this governor. The link below shows a very dirty 1950 OD transmission with attached wire harness. The top-right module is the governor. The cylinder attached to the wiring, resting in the dirt, is the solenoid.
[url= https://forum.hetclub.org/uploads/FileUpload/26/c732fadb5cacca077e30e63c7ea9e3.jp g" target="_blank">https://forum.hetclub.org/uploads/FileUpload/26/c732fadb5cacca077e30e63c7ea9e3.jp g"/> [/url]

The gentleman that runs the site link below has done a fine job providing answers to questions like yours through his collection of technical data (look in his "Transmission" section):
[url= https://hudsonrestoration1948-54.com/ ]https://hudsonrestoration1948-54.com/[/url]

Aw crap I was led astray .... looks like I may have to go looking for an OD trans .

If I end up keeping this one for a bit , does the govenor need to be hooked up ?

Mike, I'm pretty sure that that governor is for a Drive Master tranny not an overdrive tranny.