[Chevelle-List] Driveline vibes, baaaad vibes.

[Craig A. Ellis]

I have what feels like a driveline vibration that comes in about 45 miles per hour and increases in intensity until about 65 MPH when you're actually going so fast that the frequency becomes so rapid it seems to go away. I don't think it actually goes away, just feels not-so-bad, if you know what I mean. It is not engine RPM related - it occurs in second, third or fourth at the same speed and continues if you disengage the clutch and put the trans in neutral. So, it is not engine balance related. I have new Moser axles, US Gear ring & pinion (3.42), new posi clutch pack, new pinion flange, new driveshaft and it has done the exact same thing with two completely different sets of tires and wheels. Also, it is not in the front end. I'm really at a loss here - the Detroit Dreamcruise is spooling up to max output right now and I can't motor down the highway. (By the way, the cruising is so heavy every night this week that the police will shut Woodward Avenue down on some nights. On Saturday, you're talking a million spectators minimum. It is said to be the largest motorsports event in the world, bar none, and it's all muscle cars, hotrods, and other gearhead doodah.) If anyone has any ideas, I am sure enough ready to listen. Craig E.