Yes, Column shift and floor shift cables are different lengths in 1965. Column shift cables are shorter than the console shift cables. The console cables have to go forward and make a big loop up through the floor and underneath the console. On a side note 65 C-body cars with consoles like Plymouth Sport Fury, Dodge Polara and Monaco 500 and Chrysler 300 use console cables that are pretty close in length to b-body console cables, and could be used if you don't run across any b-body cables.
Hope some of this helps.