[CamaroCracka]

From what I understand, offset bushings are used to improve the axle angles. Manual transmissions, high hp, wheel hop, and launches with sticky tires can break axles. If you are doing none of those, I don't see the need. With that said, the more aggressive the CV angle the faster the joint will wear, and cheap, good axles are unobtainium for these cars. However, if you significantly bump the hp on the car, you should consider aftermarket axles anyway. Just put that in your budget for your future build.