Difference in 3 speed manual transmissions Truck/car ?????

KosmicKuda said
The earlier 3 speeds did not have provisions to mount a floor shift. Column shift only. And they do not have synchro in first gear. Way back there were after market floorcdhift conversion kits but they were not very good.

Since you already have a floor hump and other bits in hand, you should consider finding a newer A-230 as previously mentioned by Alaskan. The floor shifter bolts up like a regular 4 speed. These were the stsndard A body trans starting in 1970 or so. If was even standard on 340 Dusters.

I was given a truck trans that still had the bracket on it. It was pretty primitive but looked solid. I think it'd be pretty easy to fabricate something with angle iron and some nuts@bolts.

Obviously getting an A-230 with shifter is the ideal set-up but i think you could make the truck trans work, especially if you already own it. If you look at A body stuff, be aware that the A-250 is also a non-synchro first gear!