Hi I own a 1990 300ZX Z32, NA, 5Spd Manual, 2+2 and recently I have noticed a really bad vibration and noise whenever the revs get to 5000 or over. The car is fine until then but as soon as it hits 5000 revs I can feel bad vibrations through the gearstick and pedals and a bad noise that sounds like something is going to come flying off the car - maybe bad bearings of some sort. This happens is all situations - clutch depressed or not and in all gears plus neutral, parked or driving. Anyone experienced this or have any ideas what it could be? Any suggestions would be greatly appreciated.
