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rear axle thump

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Old Mar 19, 2010 | 01:06 PM
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rnev6's Avatar
rnev6
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rear axle thump

a few weeks ago I was replaceing my brakes. When I got the left rear wheel I noticed that I could move the tire in and out, about a 1/4 inch or so and it made a thumping sound. I also begain to notice this when I make a sharp turn like pulling into a parking spot. Any Ideas ?

99 f-150
 
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Old Mar 19, 2010 | 09:31 PM
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check the actual movement a little closer. the axle pokes into the center differential and a C clip is installed to hold it. Probably has about 1/8 inch end shake, not 1/4 inch. THe thump will be the C cllip hitting each side as you pull and push. It is much more important to see if there is any up and down movement--- should be zero. If you have much, the outer wheel bearing is bad and should also be noisy.
 
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