Axle weight?

[Nmbr1GMfan]

Is this a lot? 33 spline 12 bolt.

[Ed Wright]

I know people who had axles "rifle drilled" to lighten them, and saw zero E.T. changes.
Un-sprung weight is not as desirable as weight suspended, or "sprung-weight", I am told.
Weight changes on larger diameter components would be more noticeable due to effects on inertia.

Lighter axles, as I have been told, "can't hurt a thing."
I have some very bright friends. Wish I knew everything they know.

[Nmbr1GMfan]

These things just seem awful heavy, I may have to call an axle company tomorrow to check weights.

[MR DERBY CITY]

When you are running a stick shift, Sooner or Later.....You will purchase Mark Williams axles....They weigh what they weigh.....

[David Lee]

Originally Posted by Nmbr1GMfan

These things just seem awful heavy, I may have to call an axle company tomorrow to check weights.

that is in 1/10 of a pound of my moser's . so it right in line.

[FED 387]

Rifle drilling and scalloped flanges will result in a 17-25% weight reduction over a non lightened axle--- also keep in mind that a one pound reduction in axle weight is like a 15-17 pound weight reduction that the engine sees it has to try to overcome--FED 387

[Nmbr1GMfan]

Thanks for the replies guys. I did call Strange today and in order for them to get me a side by side comparison they need the length of my axle, I'll get it and try to call back tomorrow.

[MikeMoller]

Originally Posted by FED 387

Rifle drilling and scalloped flanges will result in a 17-25% weight reduction over a non lightened axle--- also keep in mind that a one pound reduction in axle weight is like a 15-17 pound weight reduction that the engine sees it has to try to overcome--FED 387

Sounds like quite a bit, curious how you arrive at those amounts?

[Nmbr1GMfan]

Originally Posted by MikeMoller

Sounds like quite a bit, curious how you arrive at those amounts?

Mike, I found lots of info on this subject, as I've been looking. This particular article states that a Mark Williams superlite axle is 8lbs lighter than mine, thats a 16lb difference in axles! Seems like a lot to me.
https://www.markwilliams.com/aerp3.html

[FED 387]

A cubic inch of steel weighs .283 pounds plus add in all the material in the flange multiply that by 2 and you get a number probably about 4-6pounds per side depending on axle length and diameter