MuuMuu101's 68 Dart, A Learning Process...

I agree. To be aerodynamically significant with that size of spoiler you'd have to be talking about speeds above 70 to 80 mph at least. Below that it's pretty much just looks. Above that though and it might make a bit of a difference, at least enough of one that it would need some more support.

Did it hit the ground when you were braking into a corner?