Speedo bounce - remedy please

Hi all - let me begin by letting you know that I've searched this topic and still have a couple of questions.

My speedo is bouncing at lower speeds (fades away at anything north of 40mph). I think this is a cable problem. Correct me if I'm wrong or please comment if I need to do a couple other diagnostic checks to nail it down...

Here's the question: my tech will have the instrument cluster out next week to replace a bad bulb (will be replacing all of them, actually). Do you need to pull the guages to hook in a new cable and would this:
1) be the best time to do it
2) be a best remedy (vs. trying to add graphite or some other lube to cable)

Thanks,
Matt



[This message has been edited by makakio (edited 04-10-2000).]