What happened with that?
I looked for the thread but couldn't find it.

I was just workin on my truck, held a rev and noticed my speedometer
went up in tandom with the tachometer.

at first I thought I was having an acid flashback.
I was hearing Nirvana playing as background music,
I looked out my garage and saw leprechauns...
Then I realized that there was a nirvana cd in my stereo and I remembered
I have a leprechaun on the side of my work van as our companies mascot or
whatever and quickly came to the realization that the speedo was indeed mimicking the tach.

I drove it around the block and no problems at all.
So what happend with that?
ground issue?