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thebelvedereman

Transmission question 1939 Plymouth

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 Hey guys, I've seen a few earlier 39 Plymouths that have a floor shifter, and the later ones like the one I'm buying have a column shifter, my question is the transmission a selector trans like the early plymouths that I've had so far 46 through 51, I'm asking because I would like to put a floor shifter in it, and also does anyone have a stock floor shifter from an early 39 Plymouth, and will that floor shifter work with the later 39 transmission , thanks guys always a big help

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The top plate on the trans for column shifter on a 39 has a button that is cable activated when you change shifting gates on the shift lever. The button moves a lever over in the top plate that selects either the 1st and reverse gate or the 2nd and 3rd. you can change this transmission to a floor shift simply by swapping top plates from a floor shift transmission. 

I have a top plate and shifter for a floor shift that will fit on a 39 trans. 

7A912FCB-2868-4ABE-8814-44A40F439A00.jpeg

Edited by Lloyd

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Okay cool, so it's completely different from the later selector trans,  I'm hoping to win the bid on this car, if I do what would you want for that shifter and top plate, thanks

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FYI for 39s it's not an early and late thing. The cheaper Roadking model was floor shift and the Deluxe had the new for 39 column shift. 

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1 hour ago, Young Ed said:

FYI for 39s it's not an early and late thing. The cheaper Roadking model was floor shift and the Deluxe had the new for 39 column shift. 

 

Didn't know that, thanks Ed. 

Sent you a PM belvedere.

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Here are several diagrams that I found in an old Plymouth book that I have. They are of the '39 Plymouth transmission with the floor mounted gear shift that you asked about.

John R

 

39 trans.jpg

39 trans A.jpg

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I ran into a similar situation with my 39 Deluxe. However, my shifter cable was worn off enough that I couldn't get enough adjustment on the cable to make it shift to 1st & reverse. I couldn't find a new cable. They only made that system in 1939 for the Deluxe only and went to a double shifter arm in 1940.

You'll also need to get the gearshift rails for the top shifter. The rails that are currently in your tranny are designed for the cable system and won't work with the top shifter. So, you'll need the floor shifter plate with floor shifter and the rails. Should be easy to find, since they used the same rails for several years in the floor shifter transmissions.

I have a spare floor shifter and plate that I'll sell for $50.00 plus shipping. I don't have the rails.

 

Edited by Dennis Detweiler

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Cool, thanks for that info I guess I'll have to look for the rails too,  the only reason I want to convert it to a floor shifter is because I have a very cool shifter handle that my grandfather (who was a machinist) made for me for my very first car it's solid brass and has the later years Mopar pentastar fender emblem mounted in the top of it, and I would love to have it on this car, it's been on many many of my classic Mopars already

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4 hours ago, thebelvedereman said:

Cool, thanks for that info I guess I'll have to look for the rails too,  the only reason I want to convert it to a floor shifter is because I have a very cool shifter handle that my grandfather (who was a machinist) made for me for my very first car it's solid brass and has the later years Mopar pentastar fender emblem mounted in the top of it, and I would love to have it on this car, it's been on many many of my classic Mopars already

why not just adapt that to be the knob on the column shift? Lots of guys out there using odd things like pool balls on the column shifter

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