When i give my car throttle in first or second and third gear I here pretty loud vibrating sound coming from the rear of the car. It disappears if i keep my foot on the throttle but if I give quick gas I hear vibration coming from the rear. Any ideas what this vibrating sound coming from the rear of the car could be?

 

Its all that raw horsepower Mine does it also

 

It could be an exhaust resonance of some kind. Check under the car. Is anything (a heatshield?) loose or does any part of the exhaust look like it's touching the underside of the car? Bang on the muffler with your fist. Is there a loose baffle inside it?

 

any body else with a diagnoses of what it could be?

 

Hell, could be anything... parts of the suspension, jack and other tools not secure, etc...

 

Have you checked your universal joints?

Steve Bradley

 

Where are those located?

 

Is it a metallic noise? I've got it as well and it's the exhaust muffler vibrating..I've gotta get under there and make sure it's on properly..so check that first..

..and I think the universal joints are right next to the angular joints..