If memory serves DANA got out of the auto accessories business and got into something else, the line was, however, picked up by someone else. NOTE: this is a very old memory, my 1977 only new car I ever owned, was equiped with an after market cruise control... It was a Dana, leading to a re-write of "I've been working on the railroad"
Dana won't you drive, Dana won't you drive, Dana won't you drive my car, car, car.
You get the idea
Last time I had to order parts, the company name had changed
(Used Dana cruise controls for many years... NOTE: GM uses the same control layout, I suspect whomever makes them for GM is the company that took them over. so check with GM for a simular part)