Drive shaft question mild steel or aluminum?

Don't worry about your driveshaft loop, that can be changed or modified to fit the shaft you need, you do not EVER get a shaft dependent upon the driveshaft loop.

The diameter of the shaft will depend on the length and other parameters that your driveshaft shop will ask you when you visit them.

You have a performance vehicle so if it's performance you are looking for than AL should be what you want.
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