addco 751 sway bar for 1963 Dart
The 63 does not have any mounting holes in the K Frame. 65 was the first year the sway bar was offered and thus had the mounting holes in the K. Whatever sway bar you decide to use will require mounting the bar to the K and using either LCAs with the mounting tabs or the “cheesey” brackets that mount to the shock bolt.
I’m using the 1 & 1/2 inch Helwig hollow sway bar on my 65 Dart wagon ;still under construction. I can provide pictures/dimensions of the stock mounting holes on the 65 K if needed.
Even the stock 65/66 A Body sway bar will reduce body roll and is a good upgrade over nothing at all