|
12-04-2021, 09:26 AM | #1 |
Senior Member
Join Date: May 2010
Location: muskegon, mi
Posts: 297
|
Rear axle nut
WhT size is the (and thread) is the nut that holds the rear hub on.
Thanks Dick |
12-04-2021, 10:31 AM | #2 |
Senior Member
Join Date: May 2010
Location: on the Littlefield
Posts: 6,159
|
Re: Rear axle nut
5/8 -18 suffix S18 case hardened -from the ford parts book
|
Sponsored Links (Register now to hide all advertisements) |
|
12-04-2021, 12:45 PM | #3 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
|
Re: Rear axle nut
Don't forget to use the hardened washer.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
12-04-2021, 12:50 PM | #4 |
Senior Member
Join Date: May 2010
Location: Southern California
Posts: 7,033
|
Re: Rear axle nut
In case you are trying to find one in a local hardware store DON'T DO IT. They are a special very hard nut and need to be replaced with one from a reputable supplies of Ford parts.
Charlie Stephens |
12-04-2021, 01:04 PM | #5 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
|
Re: Rear axle nut
I bought "hardened" washers for the rear axles from one of the major Model A part suppliers and they weren't hard at all. I went to the local Caterpillar dealer and got good hardened washers.
BTW, don't forget the seal that goes in the end of the hub before putting the washer and nut on.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
12-04-2021, 04:04 PM | #6 | |
Senior Member
Join Date: May 2010
Location: Southern California
Posts: 7,033
|
Re: Rear axle nut
Sponsored Links (Register now to hide all advertisements)
Quote:
Charlie Stephens |
|
12-05-2021, 09:57 AM | #7 |
Senior Member
Join Date: May 2010
Location: Long Island, NY
Posts: 3,472
|
Re: Rear axle nut
Where exactly is the requirement specified for the A-22371 5/8 Plain Washer to be hardened? I find that the A-21892 5/8-18 Castle Nut is specified as hardened, but not the A-22371 Washer.
By the way, I find from experience that the threads on the rear axle shafts are relatively ductile in comparison to the nut. It makes sense for the nut to be hardened because it determines the strength of the brake drum retention.
__________________
Bob Bidonde Last edited by Bob Bidonde; 12-05-2021 at 10:46 AM. |
12-05-2021, 05:52 PM | #8 |
Senior Member
Join Date: May 2010
Location: Lakeville, MN
Posts: 5,165
|
Re: Rear axle nut
If a hardened steel washer can't easily be found, can't a regular steel washer be case hardened by heating it cherry read with a propane or acetylene torch and dipping it in used motor oil (or any oil including vegetable oil)?
Rusty Nelson |
12-05-2021, 07:08 PM | #9 |
Senior Member
Join Date: Jul 2010
Location: Auckland, New Zealand
Posts: 515
|
Re: Rear axle nut
Wrndln, I think many repeated heating and dippings might be needed to get any usable case thickness.
I am interested to hear from someone who has tried this. I have always used Casenit cyanide powder, or packed in charcoal and put in a furnace for many hours to get a decent case depth. SAJ jn NZ |
12-05-2021, 09:00 PM | #10 |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
|
Re: Rear axle nut
I don't think "hardened" is what we need at all. High tensile is more like it. The objective is to prevent it distorting as the nut is tightened. Case hardening will help but not nearly as much as a washer made from high tensile material. JMHO.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
12-05-2021, 11:35 PM | #11 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 1,375
|
Re: Rear axle nut
I'm with Synchro909 on this - where there is torsion, tensile strength is the key.
|
12-06-2021, 08:14 AM | #12 |
Senior Member
Join Date: May 2010
Location: Long Island, NY
Posts: 3,472
|
Re: Rear axle nut
There is no requirement for a hardened washer that I can find in any Ford literature!
In my opinion, hardening causes embrittlement and that is undesirable in a part subjected to bending as is the washer in question. Stop over-torquing the axle nut if the washer is being damaged.
__________________
Bob Bidonde |
12-06-2021, 10:39 AM | #13 | |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
|
Re: Rear axle nut
Quote:
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
|
12-06-2021, 11:13 AM | #14 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
|
Re: Rear axle nut
A soft washer will deform and overly squash the fiber washer when the nut is tightened, that's why a hard washer is preferred. Just because Ford didn't specify a hardened washer doesn't mean it's not a good idea.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
12-06-2021, 03:46 PM | #15 |
Senior Member
Join Date: May 2010
Location: muskegon, mi
Posts: 297
|
Re: Rear axle nut
Thanks I have a new nut and the washer just needed a die for the threads on axle
Thanks Dick |
12-06-2021, 06:02 PM | #16 |
Junior Member
Join Date: Feb 2020
Location: Roscoe, Illinois
Posts: 27
|
Re: Rear axle nut
Do not use a die on the threads, it will remove metal! Use a thread chaser, it is designed to reform the threads without cutting away any material.
|
12-08-2021, 04:58 AM | #17 |
Senior Member
Join Date: May 2010
Location: muskegon, mi
Posts: 297
|
Re: Rear axle nut
OK found a thread file, I'll try that
Thanks Dick |
12-08-2021, 09:04 AM | #18 |
Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,903
|
Re: Rear axle nut
McMaster Carr has a number of different washers and nuts. I bought some hardened nuts to use when using the hub puller so that I would not distort the end of the axle. I modified one by using a Dremel cutoff wheel to cut a slot along the length of the nut and used this as a thread chaser. If the threads are in really bad shape, perhaps being distorted by using a hub puller without a backup nut, then a hardened nut can be cut in half with the Dremel and clamped on the threads and then screwed off to restore the threads. If the threads are not in very bad shape then the castle side of the standard nut can be screwed on first to restore the threads.
As a reminder, check the torque on the nuts every year or so depending on how much you drive your car.
__________________
A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. Last edited by nkaminar; 12-08-2021 at 09:12 AM. |
12-09-2021, 05:56 AM | #19 |
Senior Member
Join Date: May 2010
Location: VA
Posts: 1,411
|
Re: Rear axle nut
This set https://www.toolsid.com/lang-tools/2...-mpn-2581.html also has a die to chase the threads.
|
03-19-2023, 11:29 AM | #20 |
Senior Member
Join Date: Jun 2015
Posts: 1,414
|
Re: Rear axle nut
How does the cotter key go on the axle steeped nut ? Should the legs be crimped over the axle end or in to the steps?
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|