driveshaft vibration problem (pics inside)

[asiancobra]

I noticed my car would vibrate whenever I go over 4500 rpm. So I went to Ford and had them checked it. Afterwards, the guy told me it was my torque box that was damage causing my car to vibrate. The next day off I had, I inspected it myself and found this:

I also noticed that my motor mounts are shot and cracked which could be the reason of the vibration. Anyone else have an input? Any suggestion would be great.

 

[Charles236]

Replace your motor mounts and your transmission mount, then see if the driveshaft still hits the exhaust system. It looks like your car is experiencing a lot of movement (especially vertical movement of the transmission tailshaft and front end of the driveshaft) in the drivetrain, more than a car with good motor mounts and transmission mounts should have, especially a Cobra with IRS where the driveshaft doesn't require a lot of vertical movement.

 

[asiancobra]

thanks i'm going to replace them asap and hopefully the vibration goes away, my car have sra swap btw with adj MM lower control arms and stock uppers

 

[gmsux]

So the DS is hitting the exhaust flange?

 

[asiancobra]

the driveshaft is hitting the frame as you can see on the left photo next to the emergency cable i believe

 

[gmsux]

Is the car really low or is the pinion angle up really high? It's very odd the d/s would be touching the transmission tunnel like that.

 

[asiancobra]

well the ride height changed whenever I put in adj MM lower control arms, and the car is hitting pretty high right now