What was the last year for Plym floor shift trannys?

[BobT-47P15]

1939????

Were pickups using the floor shift later than that?

Would one of those floor shift models bolt onto a 1954 model Plymouth engine OK??

Would they be geared adequately for use in a late 40s passenger car?

[Young Ed]

39 was the last year for cars with the roadkings(cheaper model) being floor shifted and the deluxe having column shift. Not sure what you are trying to do with the floor shift but certainly they will bolt on. You may even be able to use the 54 bellhousing. Not sure on that part.

Oh and pickups were floor shift for quite a while but thats yet another tranny. 3spds were floor shift until atleast 47 and 4spds were always floor shift. Ford is the only one I've ever heard of who tried a column shifted 4spd

[RobertKB]

My 1938 Chrysler has a floor shift and it is bolted to a mid 50's long block 251 flattie using the '38 bellhousing. My guess is you could definitely bolt it to a 54 engine although the bellhousing will be different and you would have to use it also in place of what you have. In other words, you would need to find a bell housing as well as a transmission. Final gear ratio in all Mopar trannies behind a flathead is 1 to 1 or tranny turns same speed as crankshaft (unless you have overdrive). This is true for my 38, 48, and 53. The big difference in gearing is in the differential. The gear shift is pretty long on my '38 so you might want trim it down a bit. Trial and error I guess.

[BobT-47P15]

The reason I was asking is.....a fellow I know has a 47 Plym with a '54 flathead engine. He says he would like to install a floor shift, not just a conversion kit, but a complete older style tranny that was a floor shift.

So, I said I would check to see what would work and what will be needed to install it properly. Appreciate the info.