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  1. #1

    Default Front seat removal

    I am going to be replacing the carpet in my truck soon and will need to remove the front seats. The nuts I need to remove are an odd shape and appear to be metric?? (15mm) The truck was built in Flint, MI and I am wondering why it has metric hardware on it.

    ANYWAY, is there a special socket used for these nuts, or will a regular 12 pt socket work? The 15mm 12pt fits, but I didn't torque on it because I really don't want to break anything (I imagine it is torqued pretty tight). It felt like it could turn it, but I don't want to take any unecessay chances until I hear from someone who has taken these seats out before. Your thoughts?

    2006 GMC Sierra 2500HD Duramax

  2. #2
    Legend Mean_Green_95's Avatar
    Join Date
    Apr 2009
    Baton Rouge, Louisiana, United States


    They are 15mm. All manufacturers have converted mostly to metric because the U.S. tried to convert the entire country to the metric a couple of years ago in order to make things easier, but it just never caught on. The bolts are going to feel like they are cross threaded because GM puts in a black tar substance to ensure that the bolts don't back out easily.
    2010 Equinox LT
    2.4, 6 speed auto, power lift gate, remote start, bluetooth, xm.

    1995 Cheyenne C1500 ext. cab(my baby, my first truck)
    5.0, 5 speed, Silverado appearance package, power nothing, bucket seats and console Silverado, painted black interior, eBay halo headlights, eBay chrome tails, eBay cai, dual Flowmaster 40's w/no cats, 15x7 American Racing Hopsters, Walmart fog lights, SS mirrors

  3. #3
    Jr. Apprentice
    Join Date
    Jan 2010
    parsons, kansas 67357


    the front bolts can be removed with a 6 point 15mm socket and the rear bolts use an 11mm 6 point socket.

  4. #4


    I have remove these nuts with the metric socket, but I want to know what kind of nuts are these, there nuts are in the front of the chair, and there is same type head but the back ones are bolts.

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