Swapping 1964 plymouth Vailant from automatic to 4 speed

The crossmember is the same, stick or automatic. But the driver's side needs to be modified/notched for dual exhaust clearance. Easy enough to do if you can cut and weld (alternatively, TTi still says they may stock some modified ones, or can modify yours for you- call to verify).
https://www.ttiexhaust.com/Sheets/Crossmember_sheet506.pdf