I just purchased a 1975 Nova with TH350 and the speedometer didn't work. I replaced the gear in the transmission and I ordered a new cable from JEGS. When I got the dash out, I realized that the cable they sent me would not work with my dash cluster. I called and talked to someone in techincal support there and they transferred me to the company that makes this cable and they said the the style of speedometer I have no one makes a cable for. Is there anyone that can give me some advice about where I can get a cable, new or used, that will work?