[MadMatt]

Hey, I just started to get a vibration while driving the car a few days ago. I have found out that it starts to vibrate at around 2400 RPM and then 2500 is the worst and then it dies down till about 2800 where it will stop vibrating. I can feel the vibration in the shifter, but it does it even if the car is stopped and I rev it to 2500 which is why I say it is a motor vibration. Clutch in and out makes no difference. I have done nothing to the car in the last little while and it just started all of a sudden. Does anyone have any idea what this may be? Cracked or warped flywheel? Something internally in the motor?

Thanks in advance for the help.

[mustang5.0-1982]

maybe a motor mont ?

[speedytang]

Check the Balancer if it checks out ok and the clutch is smooth in and out check your transmission brace and see if it is rusted out at the mounting points and causing the vibration. these are the two most common problems. If these check out come back and post.

[MadMatt]

Well I am pulling the motor and tranny in about 3 weeks time so I am just going to leave it for now and check everything over when I am taking it all out.

[313M3N7]

Damper or Harmonic Balancer pulley at the bottom front of the engine needs checking I think. Its very common on the 5.0's I hear.