My speedometer gauge was squeaking now and then. I would use some of that powder (forgot the name) and it would solve the issue for a short while. Then it would be back again. So I figured it would be a good time to replace the speedometer cable since I hadn't done it yet. To replace the cable you need to reach up behind the dash (if you have small hand) and unscrew it. Remember righty tighty lefty loosey. Then get under the car and remove the cable from the transmission. You should find that on the tail house of the casing. Reverse the process to install your new cable. Now get this. I swapped this out and I still had the annoying squeak. Turns out that the bearing in my speedometer was about done and I had to replace the who thing.