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  1. #1
    SE Level Member Hotsuma9's Avatar
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    Default Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    2005 Pontiac Grand Prix - 3800 Series 3

    I lost the nut that goes on the bolt for the negative clamp. I just need to know what size the nut is so I can get some more and have some to spare. Does anyone know?

  2. #2
    GrandPrix Junkie spazzz's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Better buy a couple if you are prone to losing things.
    Only loosen it next time. You probably already figured out it was a special tapered nut for the cam style clamp. Only these will work.

    https://www.wholesalegmpartsonline.c.../11612153.html

  3. #3
    SE Level Member Hotsuma9's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Ok. I'll look into it. Thanks.

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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    How do you lose them? You're not supposed to take them off.
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    Killa Bee Scottydoggs's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    if you dropped it down by the belts its in the motor mount bucket. either lift the shield and paw around for it, or drop magnet on a stick down there and fish for it. every last thing i drop down there ends up next to the motor mount.

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  6. #6
    SE Level Member Hotsuma9's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Yeah. I shouldn't have taken it all the way off. It dropped down right below where the battery sits. It's under there and I haven't had any luck fishing it out.

  7. #7
    SE Level Member Hotsuma9's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Update to this issue. The nut size for that funking looking clamp is M6. I went into my local hardware store and picked up a couple for a few bucks.

  8. #8
    GT Level Member Gregorius's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Quote Originally Posted by Hotsuma9 View Post
    Update to this issue. The nut size for that funking looking clamp is M6. I went into my local hardware store and picked up a couple for a few bucks.
    Yeah, but it doesn't have a tapered butt, how is it going to self-tighten?
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  9. #9
    GrandPrix Junkie spazzz's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    It wont. You find out when the battery is dead.

    I put a washer under mine when I first did a HID kit, battery fizzled from a loose connection.
    The bevel rides the notch and pulls the clamp together when tightened, without the bevel it doesn't do $hit.

  10. #10
    GrandPrix Junkie spazzz's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Jeepers Hots, it took me awhile to find the nuts.
    Afckin squirrel couldn't have done better.

    You should really hop off yer Ducati and order from that link.

  11. #11
    SE Level Member Hotsuma9's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    Yeah. I think I will. I noticed that it doesn't actually self-tighten.

  12. #12
    Donating Users industrialfish's Avatar
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    Default Re: Negative clamp nut size for 2005 Pontiac Grand Prix - 3800 Series 3

    And if you over tighten it past 11ft/lbs, then the terminal gets permanently borked.
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