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Q: ABS sensor on front hub

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What is the size of the pentagon hex bolt holding on speed sensor to hub?
My car has an automatic transmission.

A: Hi, thanks for writing in. The hex bolt siz...

Hi, thanks for writing in. The hex bolt size for the ABS sensor on a 2006 GMC Envoy is a 5 millimeter for the front. I believe the rear sensors are placed into the axle rather than the hub and use a torx bolt instead of allen. Hope this helps and best of luck!

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