Whoa! I'm starting to have a similar problem in my 95 GT. Only my problem is not RPM related. Mine is speed related. It seams every time I hit about 90 mph I start to get the same vibration, worse as I go faster. I don't normally drive that fast so I don't know when it really started.
Shakes the living sh*t out of the shifter too.
I would assume mine is drive line related. I guess I should get up to that speed and depress the clutch and see what happens. I was thinking either drive shaft or something in my rear gears (I have them changed to 3.73's and whenever work is done to a car and you have a problem....)
Any ideas for me?
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