Differential issues 2003 SRT– update
Thanks to all for suggestions. I went back to the dealer and took the car for another test drive. Again, all went pretty well. I listened for noises or clunks from the rear, but all appeared normal.
On my return to the dealership (Main Dodge / Chrysler Dealership in Toronto), I had my wife reverse the car with full lock on the steering wheel, so I could hear for any noises.
Serious noises came from the diff and the car slightly jumped every time my wife lifted the clutch.
I suggested to the dealer to lift the car up in the hoist. He agreed, but he did not let me near any tools. I turned one wheel in the forward direction and noticed the other wheel remaining static. Then, I tried to turn the wheel in the reverse direction and the both wheels seized. There was a metallic noise from the diff indicating something wrong with the gears inside!
The dealer was embarrassed and suggested a rebuild differential, should I decide to proceed with the purchase. Car has 9.342 klms.
Since the Viper is a present for my wife, I walked away from the transaction, knowing that there might be other skeletons in that car.
I will report back when I get one.
Greatly appreciate all your input.