I have an 2006 Dodge Charger Daytona Go mango edition with 68k on it. When I start it, I'll hear like a thump coming like from the rear when I put it in reverse. Then I'll put it in drive and back in reverse and it won't do it. This happens on a level road. Does this happen to any one else? I'm hoping its not the CV's in the rear, the car doesn't have many miles.