3 speed column shift to 4 speed floor shift

[pappabear71]

Hey all, me again. This time i want to pick yer brains a bit. My 64 belvedere has a poly 318 in it with a 3 speed column shift. I want to upgrade toa 4 speed floor shift but, have no CLUE as to what 4 speed will bolt to my poly and if I would have to change driveshafts or not. Oh, before I forget, it is a 4 door. Thanks.

 

[moparsteve636]

A 64 trunion style trans. will fit! I believe the bell housings are the same for the 3 & 4 spd. The later small block stick bellhousing will also bolt up to the poly engine! If you use the later trans with the slip yoke on the front you'll have to change the shaft 65 and later B-body! The 63-64 flange shafts have 2 different bolt sizes also. Use an 833 23 spline trans for the swap!