I own a 81 Buick Riviera w/ 307 v-8 can I bypass the cc transducer and go straight to the speedometer without changing the actual mph reading. Keep breaking the upper and lower cables and think it my be the transducer causing this problem. When the cables were working the speedometer was jumping back and forth before the cables broke.
Just buy a speedo cable for a non-cruise control model of your car. Or measure the length of the two cables combined to get you close to what length you need. A speedo repair shop or Buick dealer parts dept can figure it out for you. Yes, it sounds like a bad transducer.
If you can get the correct length cable that goes straight from trans to speedo head, do it.
