Driveshaft vibration

[LaserSVT]

I am noticing a vibration in the car when I go over 100. Starts as a humm and builds with speed. When I let off the throttle at high speeds 120+ it will shake the stick untill the car drops below 100. Is this drivesgaft vibration? It is still the stock one, should I get an aluminium one?

 

[Rusty67]

It could be your trans mount or your rear end/rear control arm bushings. Check those. Also, have the ballance checked on the driveshaft but I doubt that is the issue.

 

[Stus99GT]

I am noticing a vibration in the car when I go over 100. Starts as a humm and builds with speed. When I let off the throttle at high speeds 120+ it will shake the stick untill the car drops below 100. Is this drivesgaft vibration? It is still the stock one, should I get an aluminium one?

I had the same problem after my gear install. A FMS aluminum driveshaft fixed the problem.

 

[Samz281]

I am noticing a vibration in the car when I go over 100. Starts as a humm and builds with speed. When I let off the throttle at high speeds 120+ it will shake the stick untill the car drops below 100. Is this drivesgaft vibration? It is still the stock one, should I get an aluminium one?

Just so happens I am selling a brand new FRPP ALUMINUM Driveshaft for $225.00 Let me know if you would like it....If you buy it somewhere else..its gonna run u $50 more....

 

[00GTpony]

YOu could check the U joints in your driveshaft, or mayb its as simple as your tires need sum balancing