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i know this is a really old conversation, but if anyone still cares, GM fixed this problem in the corvette and second gen cts-v by giving the cars asymmetric half axles. the problem is that the harmonics created by the suspension and drivetrain combined build up constructive interference since both sides load up equally and then release their energy equally. a lot of guys with 1st gen cts-v's have bought asymmetric axle kits and that has solved the problem for them. from a layman's perspective, it works because the side with the stronger axle will break traction first and will therefore not load up the same as the other side. this means you don't get a standing wave like you do with the symmetric system. so any of you guys wanting to fix the wheel hop issue should look into getting asymmetric half axles. that said, every mechanical system has a natural frequency. that means you have to choose the axle diameters carefully. they should be significantly different thicknesses, and their natural frequencies should be such that they don't have constructive interference at any expected loading.
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