In all honesty, I would dump that sucker while its still working, there are a few that still think they aren't bad, and Feebay seems to pull a good buck for them.
It has been a long time since I played with a Dak IX, but from what I recall it uses an entirely different modulation scheme from "normal" CB radios, and you just aren't going to get it to do a whole hell of a lot. I do remember the one I had, I used the old"dial-a-watt" method to drop the carrier, changed a couple caps in the final section, and managed a reasonable forward swing, but even still the radio was a dog, Sold it, and bought a Pres washington, and 138XLR, and still had some change leftover.