[BMF]

One of my fellow racers has done the test, and the aluminum shaft is quicker.

In a 68' Chevelle, the stock steel shaft was compaired to a Denny's Aluminum driveshaft and the aluminum shaft was 4 hundreths quicker (0.04).

This test was done on a car that sees typically 180-250 passes in a season of racing, and the results are accurate.



If you can see it on the slip or not, if you add rotating mass, you're slowing your car down. Every Class racer and professional racing team looks to minimize rotating mass!

You might consider a Denny's HD aluminum driveshaft, or Mark Williams.

Since i'm building my car into a Stock Eliminator ride, and an aluminum driveshaft is illegal in my class (F/SA 295HP/350 67' camaro) i regretfully put a Nitrous Ready Steel shaft in my car which weighed 7lbs more then the stock one!