904 cable replacement '65

I have paper and digital versions of both. It sounds like if I can free the cable from the housing I should be able to carefully disengage the spring and remove the housing from the transmission to see what's going on. I can see in the parts books that the springs have a different number but as you know sometimes part numbers change but the parts do not
64 push button spring is 2123248
65 spring is 1942161