3.5" steel or 4" aluminum driveshaft?
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3.5" steel or 4" aluminum driveshaft?
I'm getting a new driveshaft for my race truck. It's around 3500lbs and will be spinning the motor to around 7300rpms. I know the aluminum would be lighter, but is it needed? I'm using slicks, low gears, and a big converter, so I plan to launch hard. Of those 2 choices, which would be the better choice?