The Ford Barn

NormC · 07-27-2014, 08:05 PM

I know that most if not all of you recommend the taper of the axle to be clean of any material prior to installing the brake drums, but I have a question concerning the use of an Anti-Gallant material applied to the taper.

Does anybody have any experience using an Anti-Gallant on the taper?

At work, we will apply an anti-gallant to one particular nut and washer. We will torque this nut to 7,000 in/lbs and then “stretched” and additional 45 degrees of rotation.

I have cleaned the axle and drum and lapped the two surfaces.

Thanks,
Norm

deuce_roadster · 07-27-2014, 08:42 PM

I don't put anything on my clean lapped tapers. I don't have any experience with anti-galling stuff but anything between the 2 surfaces I would think would lessen the friction which should be driving the car.

19Fordy · 07-27-2014, 09:17 PM

7000 in. pounds equals 583 ft. pounds. That's way more than the 220 foot pounds recommended for 1935-48 rear axle nut.

ford38v8 · 07-27-2014, 10:46 PM

Norm, if the axle nut is correctly torqued on your properly lapped shaft and drum, there will be no galling. Galling is caused by the friction and sliding between two metal surfaces, which will not happen id installed correctly.

If, on the other hand, you are concerned about the cusswords and hair pulling force required to separate a drum from an axle, don't be, as that drum had been installed correctly, and you may be using incorrect tooling to remove the drum.

JSeery · 07-27-2014, 11:20 PM

Anti-Gallant material would defeat the purpose of the taper. The taper is to lock the two parts together and provide the maximum friction between them. An anti-gall substance would act as a lubricant, just the opposite effect.

G.M. · 07-28-2014, 08:27 AM

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Any type of material between the axle and hub takes space. You would have a .0005 or thicker film between the axle and hub. Your lapped surfaces dry make the tight metal to metal contact required to drive the wheel. In my opinion the key is just a safety devise. If the key has a worn line down the sides the axle is loose in the hub. This is the reason for such a long taper so it locks together. G.M.

07-27-2014, 08:05 PM	#1
NormC Member Join Date: Oct 2012 Location: Flowery Branch, GA Posts: 80	Taper Axle Treating I know that most if not all of you recommend the taper of the axle to be clean of any material prior to installing the brake drums, but I have a question concerning the use of an Anti-Gallant material applied to the taper. Does anybody have any experience using an Anti-Gallant on the taper? At work, we will apply an anti-gallant to one particular nut and washer. We will torque this nut to 7,000 in/lbs and then “stretched” and additional 45 degrees of rotation. I have cleaned the axle and drum and lapped the two surfaces. Thanks, Norm

07-27-2014, 08:42 PM	#2
deuce_roadster Senior Member Join Date: Oct 2011 Location: Shelton, WA Posts: 3,800	Re: Taper Axle Treating I don't put anything on my clean lapped tapers. I don't have any experience with anti-galling stuff but anything between the 2 surfaces I would think would lessen the friction which should be driving the car.

07-27-2014, 09:17 PM	#3
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,950	Re: Taper Axle Treating 7000 in. pounds equals 583 ft. pounds. That's way more than the 220 foot pounds recommended for 1935-48 rear axle nut.

07-27-2014, 10:46 PM	#4
ford38v8 Senior Member Join Date: Jul 2011 Location: SF Bay Area Posts: 6,646	Re: Taper Axle Treating Norm, if the axle nut is correctly torqued on your properly lapped shaft and drum, there will be no galling. Galling is caused by the friction and sliding between two metal surfaces, which will not happen id installed correctly. If, on the other hand, you are concerned about the cusswords and hair pulling force required to separate a drum from an axle, don't be, as that drum had been installed correctly, and you may be using incorrect tooling to remove the drum. __________________ Alan

07-27-2014, 11:20 PM	#5
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: Taper Axle Treating Anti-Gallant material would defeat the purpose of the taper. The taper is to lock the two parts together and provide the maximum friction between them. An anti-gall substance would act as a lubricant, just the opposite effect.

07-28-2014, 08:27 AM	#6
G.M. Senior Member Join Date: May 2010 Location: Florida and Penna. Posts: 4,471	Re: Taper Axle Treating Sponsored Links (Register now to hide all advertisements) Any type of material between the axle and hub takes space. You would have a .0005 or thicker film between the axle and hub. Your lapped surfaces dry make the tight metal to metal contact required to drive the wheel. In my opinion the key is just a safety devise. If the key has a worn line down the sides the axle is loose in the hub. This is the reason for such a long taper so it locks together. G.M. __________________ www.fordcollector.com