WheelColliders stiffness and c#

I'm trying to modify the stiffness of my wheel(s) so I can remove friction from them when needed.

Code (csharp):

1.  
2.     private void removeWheelFriction(){
3.         foreach(WheelCollider wheel in wheels){
4.            
5.             WheelFrictionCurve sf = wheel.sidewaysFriction;
6.             WheelFrictionCurve ff = wheel.forwardFriction;
7.             ff.stiffness = 0;
8.             sf.stiffness = 0;
9.             print("wheel"+wheel.sidewaysFriction.stiffness);
10.         }
11.     }
12.  

Does not actually change the stiffness... it still comes through as the default value of 1.

doing:

Code (csharp):

1.  
2. wheel.forwardFriction.stiffness = 0
3.  

returns and error that I cannot modify the return value because it is not a variable.

How do I get this to work in c#?[/quote]

 

Never mind... I thought I had tried this already.. but this works:

Code (csharp):

1.  
2.     private void removeWheelFriction(){
3.         foreach(WheelCollider wheel in wheels){        
4.             WheelFrictionCurve sf = wheel.sidewaysFriction;
5.             WheelFrictionCurve ff = wheel.forwardFriction;
6.             ff.stiffness = 0;
7.             sf.stiffness = 0;
8.             wheel.forwardFriction = ff;
9.             wheel.sidewaysFriction = sf;
10.             print("wheel"+wheel.sidewaysFriction.stiffness);
11.         }
12.     }
13.