'76 CJ AMC 20 Axle Issue - JeepForum.com
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post #1 of 10 Old 05-11-2021, 01:49 PM Thread Starter
RGIII4505
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'76 CJ AMC 20 Axle Issue

I am currently replacing the seals and bearings on my AMC 20 rear axle and on the passenger side, the race is loose inside the outer flange of the axle tube. It appears as though somehow the inside of the axle tube has been worn out, I'm not really sure how that could have happened. Is there anything I can do to "patch" this up for a while or is my only option at this point to get another AMC 20?

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post #2 of 10 Old 05-11-2021, 02:25 PM
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Loctite Sleeve Retainer 640; peening as well. Unless its that loose. does the old one show signs of being spun.

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post #3 of 10 Old 05-11-2021, 03:20 PM
turbogus
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The original Corporate 20 on 'Black Betty' had ever so slightly bent axle tubes from the differential that wreaked havoc on bearing wear and retention. It was so slight that we didn't even see the bend until we got it on the ground in preparation of installing the D44 that's in her now.




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post #4 of 10 Old 05-11-2021, 03:30 PM Thread Starter
RGIII4505
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Loctite Sleeve Retainer 640; peening as well. Unless its that loose. does the old one show signs of being spun.
It's loose enough that the axle moves up and down so I am pretty certain the previous race was spinning in the tube. The first 1/2" inside the tube is pitted pretty bad as well.
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post #5 of 10 Old 05-11-2021, 05:35 PM Thread Starter
RGIII4505
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I know this sounds completely horrible, but reality is I will have to hunt down a complete rear end regardless......but would something like JB Weld hold up for a while if I could go in there and basically add a layer of JB Weld to the inside of the flange to set the race in and just use something to hold the axle level inside of the axle tube as the JB Weld set up? I know that is a crazy jack leg thing to do, but I just need this thing on the road for a couple of weeks while I am here in the states before I head back overseas and have enough time to shop for me a new rear end.
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post #6 of 10 Old 05-11-2021, 08:16 PM
sonnychiss
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Originally Posted by 222Doc View Post
Loctite Sleeve Retainer 640; peening as well. Unless its that loose. does the old one show signs of being spun.
Peening is a good idea.....OP in case you are not clear on that, you can take a center punch and make a bunch of divots in the axle tube where the race fits. The divots will be surrounded by a raised area and if you do a lot of these it may tighten it up sufficiently. Adding the loctite would be good too.
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post #7 of 10 Old 05-12-2021, 12:03 AM
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Peen the heck out of it with a sharp point and you may have to drive the race back in with a hammer.
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post #8 of 10 Old 05-12-2021, 05:51 AM
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Peening.
Use an air hammer with a sharp point. Go slow and run circles around the inside of the housing till the race is a tight fit.

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post #9 of 10 Old 05-12-2021, 10:38 AM
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Or find some shim stock that will fit around the circumference of the bearing race yet fit snugly in the housing when tapped in.
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post #10 of 10 Old 05-12-2021, 02:08 PM
RedNeckCorvette
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80 j I never could make that work, there was always variations in the worn surface areas, as much as 3x in some places rather than others.
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