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2002 chevy trailblazer_ls
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Is the play at the differential or the hub? We don't have the older inner/outer bearing setup. Our wheel bearings are within the hub.

You parking lot circle test sounds like it's the driver side hub going bad again.
 

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2002 chevy trailblazer_ls
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4,102 Posts
can't find a spec for the diff bearing but any play in a bearing is bad. I would say 1/32" movement is too much but thats just me.

What you can do (time and $$ involved) is remove driver cv axle, drain diff fluid and seal of the cv axle hole and drive it around. Gatorade caps block them off good
 

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2002 chevy trailblazer_ls
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4,102 Posts
According to this pic there are 2 bearings on each side. One on the diff (#25) and one in the case for CV support (#36). I would think they would both have to be bad for the CV to move alot. With the CV engaged in the spider gear it shouldn't move unless their is play in the diff bearings.

 
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