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Hey everyone! I have to replace my front driver side hub assembly on my 2017 3.6L Cadillac XT5 Luxury immediately. I noticed a loud grinding noise while driving down the highway the other day, put my car in neutral and was able to determine that it was the driver side wheel bearing. First thought was transmission. I just picked up the assembly, however I'm having trouble locating the size of the spindle lock nut or axle nut, I'm not real sure what it's called.

I have found zero information regarding it, not even a part number. I hear it's a one time use only. Does anyone have any idea what size socket I will need? Has anyone done this before? I'm not in the position to go out and buy multiple sockets until I get the correct one (recently divorced and what not) so any information is greatly appreciated!
 

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2016 Escalade ESV, 2017 GMC Sierra 6.2
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You can use it again. The most common sizes for GM are 32, 34, 36 mm.
 
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