I don't believe the camaro has a torque tube like the corvette, so no I don't believe it has the isolator. I believe, but don't know for sure, that the resonance is related to the critical speed of the shafts. When both the left and the right shafts approach their critical speed at the same time, the compounded resonance creates an instability that leads to wheel hop. But making a shaft larger in diameter, or making one shorter than the other, you change that shafts critical speed.
Now that is what leads to wheel hop when all other suspension designs are correct. If you start doing things like changing wheel sizes, bushing hardness, or adding power, the variables can change, and wheel hop can occur.