I have been trying to figure out a vibration I have on my Cuda since I started driving it on the road in march of this year. When I drive down the road I start to get what feels like a vibration coming from the rear of the car at about 50 mph. If I push the clutch in when it is vibrating it does not go away. I had all the new BFGoodrich radial TA tires balanced on a road force balancer and the shop told me one of my wheels had a slight bend but that it had balanced fine. I decided that the first thing I would try is to take the bent wheel off and mount a wheel off my Challenger RT and see if it would fix the vibration. I did this today and guess what the vibration went away and this is one of the easiest problems I have ever solved on my Mopar cars. I was ready to have the driveshaft balanced and change out the rear wheel bearings if needed. Hope this will help someone else with a problem like mine fix there issue.
Jeff