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What are your goals for the car?

Heres a quick breakdown:

Mild Steel

+ Steel is cheap, steel is strong

- Steel is heavy

Aluminum

+ Aluminum is light

- Aluminum has no fatigue limit, eventually it will break.

A Chromoly Steel

+ Best of both worlds, strong and lightweight

- A little more money

Carbon Fiber

+ Strong, non destructive when broken, unlike an alum. or steel driveshaft which will tear things up

- EXPENSIVE. street driven cars that will subject the CF driveshaft to rock chips and what not should walk away now. Chipping and what not will severely weaken the driveshaft.


With that being said I am using a chromoly shaft in make car.