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I went to replace a wheel bearing and noticed damage on the spline. The nut spun off fine, but I’m not sure if I should replace whole cv axle as well due to this. 2009 AWD FORD EDGE

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  • Any chance that the CV unit isn't original? Perhaps the previous owner replaced it with some "it fits, somehow" unit? And had, judging from the picture, only a large hammer and anger issues?
    – Martin
    Jan 1, 2022 at 10:56
  • Is the nut removed in that photo?
    – HandyHowie
    Jan 1, 2022 at 12:53
  • The nut did come of with the assistant of steady pressure on the backside from a small pry bar. It appears to be original CV joint. The wheel and hub on the other hand have definitely been replaced by likely a junkyard replacement part. I’m guessing that’s where the damage occurred. Someone getting way too aggressive trying to push the axle out.
    – J T
    Jan 1, 2022 at 20:23

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I would replace the entire unit. The reason being it is highly unlikely you will be able to get the nut to start correctly. The nut will wind up cross-threading and won't torque correctly. As a side note there is a reason almost all manufacturers design the axle end with a longer threaded section. I don't know what the reason is, but they don't add extra material and cost unless it is needed.

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  • Sometimes they reuse existing models, while it increases material costs it eases logistics. I, personally, would cut it..
    – Martin
    Jan 1, 2022 at 10:52
  • Going to try this. Angle grinder and cutting wheel for the cut?
    – J T
    Jan 1, 2022 at 21:20

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