WheelCollider messing with CentreOfMass of Vehicle

i started using unity 5 and i getting a problem.
while changing the centre of mass position, wheel Collider also changing the position.

first image shows the centre of mass at 0, 0, 0;

second is centre of mass at 0, 0, 1.53f

in unity 4 i never face this type of problem.

Yes, this is a regression in 5.2. There should be patch for 5.2 with the fix soon-ish.