Axle weight?

Nmbr1GMfan · 08-12-2018, 06:14 PM

Is this a lot? 33 spline 12 bolt.

Ed Wright · 08-12-2018, 07:33 PM

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 · 08-12-2018, 07:55 PM

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

MR DERBY CITY · 08-12-2018, 07:58 PM

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

David Lee · 08-12-2018, 10:01 PM

Quote:

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 · 08-12-2018, 10:10 PM

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 · 08-13-2018, 06:53 PM

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 · 08-13-2018, 07:01 PM

Quote:

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 · 08-13-2018, 07:35 PM

Quote:

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 · 08-13-2018, 07:43 PM

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

08-12-2018, 06:14 PM	#1
Nmbr1GMfan VIP Member Join Date: Aug 2013 Posts: 1,763 Likes: 1,197 Liked 1,954 Times in 491 Posts	Axle weight? Is this a lot? 33 spline 12 bolt. __________________ Todd Greene

08-12-2018, 07:33 PM	#2
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Axle weight? 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. __________________ Ed Wright 4156 SS/JA

08-12-2018, 07:55 PM	#3
Nmbr1GMfan VIP Member Join Date: Aug 2013 Posts: 1,763 Likes: 1,197 Liked 1,954 Times in 491 Posts	Re: Axle weight? These things just seem awful heavy, I may have to call an axle company tomorrow to check weights. __________________ Todd Greene

08-12-2018, 07:58 PM	#4
MR DERBY CITY VIP Member Join Date: Feb 2014 Location: Derby City, USA Posts: 3,618 Likes: 1,074 Liked 7,802 Times in 1,500 Posts	Re: Axle weight? When you are running a stick shift, Sooner or Later.....You will purchase Mark Williams axles....They weigh what they weigh.....

08-12-2018, 10:10 PM	#6
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,412 Likes: 512 Liked 329 Times in 177 Posts	Re: Axle weight? 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

08-13-2018, 06:53 PM	#7
Nmbr1GMfan VIP Member Join Date: Aug 2013 Posts: 1,763 Likes: 1,197 Liked 1,954 Times in 491 Posts	Re: Axle weight? 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. __________________ Todd Greene

08-13-2018, 07:43 PM	#10
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,412 Likes: 512 Liked 329 Times in 177 Posts	Re: Axle weight? 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