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Unread 06-19-2011, 02:16 PM   #1
agear
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How to check if axle housing bent/warped ?

Anybody know how to check if your axle housing is bent or warped ?

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Unread 06-19-2011, 05:57 PM   #2
80cj
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I thought I posted a reply to this thread but I don't see it.

A few years ago I found I had a warped 44 axle housing by setting the housing on jackstands and putting a torpedo level first on one axle tube then the other. My readings were different which caused me to do further checks which confirmed my readings with the level.
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Unread 06-19-2011, 06:18 PM   #3
agear
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You posted to my amc 20 rebuild thread. I'll try putting the level on the tubes don't know what else to try.
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Unread 06-19-2011, 06:26 PM   #4
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The best way is to get a straight peice of round stock steel that is as close in diameter as possible to the splined end of your axle shafts. Remove the shafts and slide the steel rod through the housing so it protrudes from each exle flange (if you have a thrust block installed you'll have to take it out to be able to slide the rod through). Then take mesurements from the top and bottom of the rod to the bearing bore. If the measurements between top and bottom aren't equal on either tube then it's bent up or down relative to the centerline of the differential case.
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Unread 06-19-2011, 07:15 PM   #5
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The procedure with the level could be considered a rough check. I did a more detailed check once I found the discrepancy with the level. What I did was to turn 2 plexiglas (because that was the material I had) discs in a small lathe the same size as the wheel bearing bores. I then drilled a small hole in the center of each disc before removing it from the lathe. The hole size was just big enough to allow 20 lb. test fishing line to pass through. Then I installed each disc into the wheel bearing bores with a piece of 20 lb. test fishing line stretched the length of the housing between both discs. I attached the carrier bearing caps and measured the diff bearing bore location relative to the center line (fishing line). I found that the housing was off by 1/4". I worked in a calibration lab so I had a good assortment of tools and equipment at my disposal.
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