Axles, gun drilled or not? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Rannos · 12-27-2015, 09:24 PM

Thinking about buying a complete Moser 12 bolt for my truck. Spool, 35 spline axles, 9" axle bearing, etc. Have a buddy telling me to get gun drilled axles. I am worried that would be a mistake as the truck is street driven much more then it sees the track. I imagine the shock of pot holes wouldn't be kind to a drilled axle. Just curious if any of yall had an opinion on this. Any input is appreciated.

Marv D · 12-28-2015, 08:10 AM

Sure.... If you were looking for every ounce of weight savings, and every pound of torque,,, But anything less than a max-effort 2000HP Pro-Stock, Pro-Mod Top Dragster all out competition vehicle,, I really would rather have a solid axle.

Besides, The reverse wrap-up the axle is subjected to on the street (with a spool or posi) is not going to be nice to an axle as you said. Taking material away sure seems counterproductive.

Rannos · 12-28-2015, 08:55 PM

I agree. I was trying to explain to my buddy that if I was worried about every ounce of weight I wouldn't be racing an all steel bodied truck. I think I'll save the money on the gun drilled axles. Thanks for your input Marv.

71Dragtruck · 12-28-2015, 09:06 PM

If you want to save a couple lbs in that area could do star flanges, likely not worth the cost/rotating weight savings but worth at least 10 bragging rights hp, lol.

BR3W CITY · 12-28-2015, 09:14 PM

Seems to me that gun drilling, swiss cheezing, and the like is more often than not a way of the past in all but a few select situations. Yes weight savings is great, but more and more we're finding ways of using lighter and stronger materials, or using engineering to make a product which uses a material more effectively.

Plus, drilling like 500 holes in something is PITA, though machine-turning a finish is worse.

Rannos · 12-30-2015, 11:18 AM

Thanks for the input guys. I'm going to steer clear of the gun drilled axles. All I plan to do with the truck is play on the street a little and try out the 7.0 index at the local track. I'm hoping with a gear change it will do a bit better then 7.0's on motor.

BR3W CITY · 12-30-2015, 08:41 PM

I assume you mean 1/8?
7's on motor in the 1/4 would be a little more than we're talking lol.

Rannos · 12-30-2015, 10:51 PM

Haha. Yeah 1/8. It's a pump gas iron headed sbc. Has Been 6.6xx on 150 shot with a 1.4xx 60' Have yet to make a N/A pass.

12-27-2015, 09:24 PM	#1
Rannos Registered User Join Date: Feb 2010 Location: New Caney, Texas Posts: 356	Axles, gun drilled or not? Thinking about buying a complete Moser 12 bolt for my truck. Spool, 35 spline axles, 9" axle bearing, etc. Have a buddy telling me to get gun drilled axles. I am worried that would be a mistake as the truck is street driven much more then it sees the track. I imagine the shock of pot holes wouldn't be kind to a drilled axle. Just curious if any of yall had an opinion on this. Any input is appreciated.

12-28-2015, 08:10 AM	#2
Marv D Registered Truck Offender Join Date: May 2008 Location: hells training ground (aka Ariz) Posts: 3,118	Re: Axles, gun drilled or not? Sure.... If you were looking for every ounce of weight savings, and every pound of torque,,, But anything less than a max-effort 2000HP Pro-Stock, Pro-Mod Top Dragster all out competition vehicle,, I really would rather have a solid axle. Besides, The reverse wrap-up the axle is subjected to on the street (with a spool or posi) is not going to be nice to an axle as you said. Taking material away sure seems counterproductive. __________________ Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral.

12-28-2015, 08:55 PM	#3
Rannos Registered User Join Date: Feb 2010 Location: New Caney, Texas Posts: 356	Re: Axles, gun drilled or not? I agree. I was trying to explain to my buddy that if I was worried about every ounce of weight I wouldn't be racing an all steel bodied truck. I think I'll save the money on the gun drilled axles. Thanks for your input Marv.

12-28-2015, 09:06 PM	#4
71Dragtruck Registered User Join Date: Jun 2004 Location: Saskatchewan, Canada Posts: 1,368	Re: Axles, gun drilled or not? If you want to save a couple lbs in that area could do star flanges, likely not worth the cost/rotating weight savings but worth at least 10 bragging rights hp, lol. __________________ Speed is just a matter of money, question is how fast can you afford to go? 8.95@148.97mph all motor haven't tried bottle yet Sponsored by: Getz Oilfield Consulting Hard Candy Customs

12-28-2015, 09:14 PM	#5
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Axles, gun drilled or not? Seems to me that gun drilling, swiss cheezing, and the like is more often than not a way of the past in all but a few select situations. Yes weight savings is great, but more and more we're finding ways of using lighter and stronger materials, or using engineering to make a product which uses a material more effectively. Plus, drilling like 500 holes in something is PITA, though machine-turning a finish is worse. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

12-30-2015, 11:18 AM	#6
Rannos Registered User Join Date: Feb 2010 Location: New Caney, Texas Posts: 356	Re: Axles, gun drilled or not? Thanks for the input guys. I'm going to steer clear of the gun drilled axles. All I plan to do with the truck is play on the street a little and try out the 7.0 index at the local track. I'm hoping with a gear change it will do a bit better then 7.0's on motor.

12-30-2015, 08:41 PM	#7
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: Axles, gun drilled or not? I assume you mean 1/8? 7's on motor in the 1/4 would be a little more than we're talking lol. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

12-30-2015, 10:51 PM	#8
Rannos Registered User Join Date: Feb 2010 Location: New Caney, Texas Posts: 356	Re: Axles, gun drilled or not? Haha. Yeah 1/8. It's a pump gas iron headed sbc. Has Been 6.6xx on 150 shot with a 1.4xx 60' Have yet to make a N/A pass.



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