Lightweight Axles

[Wade_Owens]

Originally Posted by Bill Edgeworth

Now when it comes to aluminum verses steel spools I think there is much more too it than rotational inertia. I think flex and friction may play a big role.

Bill, you are exactly right. I have talked with a couple of Pros extensively on this topic. Its the flex that kills the Pro Stock cars. Trust me, if aluminum would live, even for just 2 passes, AND be faster, it would be in their car.

Ed, what Haas said to you is right, but, as is said here before, apples and oranges with what we do and a Pro Stock car, I'll never have to worry about the later!

As for longevity in one of our cars, when I finished my car in late '07, I put an aluminum Moser spool in. Tim Irwin told me at that time that they had previously had breakage problems, but, got it fixed. I have had the rearend apart at least 3 times a year since then. The axles are as tight as day one with no visual signs of problems. Without gears installed and dial indicator check, it still only has .001 runout. You be the judge........

Wade O