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Old 08-11-2017, 02:39 PM   #21
Jeff M
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Default Re: Rear Axle Keys

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Does anyone have pictures on how the keys look installed? I have some I ordered but they look like the ones pictured with two small tapers on each end. They don't have a long taper on one side like the other pictured.

I've never messed with a banjo rear before. I'm going to lap the axles and hubs but want to get the keys right. Also one keyway is pretty loose towards the taper, how does one fix this?
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Old 08-11-2017, 02:57 PM   #22
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Default Re: Rear Axle Keys

If only the taper were needed for grip, then WHY did Henry do all the extra work to put in a KEY????---Are we over thinking this thing????
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Old 08-11-2017, 03:08 PM   #23
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Default Re: Rear Axle Keys

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If only the taper were needed for grip, then WHY did Henry do all the extra work to put in a KEY????---Are we over thinking this thing????
Bill Commonsense
It was probably standard engineering practice of the day. You didn't question it, you just did it the way you were taught. Or it may have been for the customer satisfaction/safety factor. People would be unhappy with Ford if the dealer mechanic left the nut loose.
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Old 08-11-2017, 03:38 PM   #24
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Default Re: Rear Axle Keys

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It was probably standard engineering practice of the day. You didn't question it, you just did it the way you were taught. Or it may have been for the customer satisfaction/safety factor. People would be unhappy with Ford if the dealer mechanic left the nut loose.
I did a brake job on a Chrysler, next morning I had the manager call the customer to stop by, so I could make SURE I put in the COTTER KEYS They WERE there!
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Old 08-12-2017, 08:22 AM   #25
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Default Re: Rear Axle Keys

When I bought my Model A, one side of the rear axle had a "REX A " carbon steel tool bit for a key. It had been used as a lathe tool.

When we disassembled the rear axle and housing, we were faced with an entire rebuild including axles.

What a mess;
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Old 08-12-2017, 10:00 AM   #26
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Default Re: Rear Axle Keys

Great reading just checked our 29, nuts were loose. Torque to 100.

Thanks again for the reminder. Your never to old and if you are, you don't know everything.

Enjoy.

Last edited by WHN; 08-12-2017 at 11:34 AM.
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Old 08-12-2017, 11:18 AM   #27
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Default Re: Rear Axle Keys

The use of an assembly compound like anti seize helps to prevent the pitting and galling evident on used axles. On perfect taper applications like machine tools I agree with the clean and dry concept.
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Old 08-12-2017, 01:47 PM   #28
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Default Re: Rear Axle Keys

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So the taper on the axle and the taper on the hup is a dry fit only, no anti seize to help take it apart many years later?
Hey Dave,
REMOVAL , at some point in time, is why pullers were made. If proper recommended torque is applied when assembling, that torque + will be used to 'break' it loose.
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Old 08-12-2017, 03:01 PM   #29
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Default Re: Rear Axle Keys

I clean the taper and hub with gasolene or cellulose thinners and make sure they really are grease free . The key in ideal circumstances should not be loaded . I worked in the oilfield for a while and you have "tight" then "tight tight" then "tight tight tight" thats what you want,100 ft lbs nothing less . I do not like shims as I dont think you can get a good solid mechanical bond if you use them IMHO .

John in dark cloudy Suffolk County England .
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Old 08-12-2017, 03:41 PM   #30
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Default Re: Rear Axle Keys

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The use of an assembly compound like anti seize helps to prevent the pitting and galling evident on used axles. On perfect taper applications like machine tools I agree with the clean and dry concept.
Galling is the result of movement without lubrication. If the axle nut is tight enough, there will not be any movement to cause galling.
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Old 08-12-2017, 09:36 PM   #31
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Default Re: Rear Axle Keys

I put mine at 125 I think or 150 cant remember. Have fun modelAtony tony white Lafayette, LA
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