What bolt size can be used to remove brake drums?

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  • 1 Post By Goody51

Thread: What bolt size can be used to remove brake drums?

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    Default What bolt size can be used to remove brake drums?

    This morning I decicded to remove the wheels from my 2005 two-wheel drive Tundra so that I could check the condition of the brake pads and brake shoes. I had no problem looking at the disc brake pads, but both drums are stuck on. With this model truck there is a guard around the outer edge of the rear brake drums and there is no way to grab the drum and pull it off or tap the edge with a hammer. The drums are rusty at the hub which makes the problem worse. In my Haynes manual it shows that there are two threaded holes in each brake drum where I can screw in bolts to help remove the stuck drums. But it does not say what size bolt to use. I assume that it will be a metric bolt size. Does anyone know what bolts I need that can be threaded into the tapped holes in the brake drums to allow me to unstick the drums so that I can remove them and examine the brake shoes?

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    Junior Member Rotts's Avatar
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    Default Re: What bolt size can be used to remove brake drums?

    Not sure of the bolt size, but you may have to back off on the adjustment of the brake shoes then pull of the drum. The shoes may be holding it.
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    Default Re: What bolt size can be used to remove brake drums?

    as above poster stated, back off the shoes. then spray the hubs with a rust cutter and let it soak. you can then tap the drum with a hammer.
    Don't use the bolt holes. if the hub is stuck, you will bend the face of the drum.

    ask me how I know. I ruined a set of drums on a 4runner.

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    Default Re: What bolt size can be used to remove brake drums?

    I read somewhere the bolt size is 8mm X 1.25, but I haven’t tried it yet….
    tundra3400 likes this.

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    Default Re: What bolt size can be used to remove brake drums?

    Just a stupid, quick question: Did you make sure that you released the e-brake before trying to pry them off? (don't ask me why I'm asking this question!!)
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    Default Re: What bolt size can be used to remove brake drums?

    I still have the package from the bolts I bought to remove the rear drums, it's M8x30 pitch 1.25. I think the 30 is the length, you can use that or longer.
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    Default Re: What bolt size can be used to remove brake drums?

    I had to back the star adjusters way off before the drum covers would come off with the bolts. Once I backed them off enough, the covers popped right off with the bolts. You'll be able to tell if the adjusters are not backed off enough - the bolts will move the drum cover out easily a short distance, then it will hang up on the wear ridge.

    You'll know you're adjusting the star adjuster in the wrong direction if you aren't able to turn the drum by hand any longer (pushing the pads into engagement).

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    Default Re: What bolt size can be used to remove brake drums?

    Inside this pdf should explain what ya need to know! hope it helps!
    Attached Files Attached Files

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    Default Re: What bolt size can be used to remove brake drums?

    Size is 8mm X 1.25.
    Mine still stuck because brake pads were expanded try turning the star wheel adjustor as well.

    Later found out the problem was the ridge of rust that built up on the wheel.
    As long as the wheel turns the brakes pads are not too expanded to pull off the drum.
    Just had to let it soak overnight with rust remover.
    Last edited by Shane1962; 02-07-2015 at 06:06 AM.

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    Default Re: What bolt size can be used to remove brake drums?

    Quote Originally Posted by Shane1962 View Post
    Size is 8mm X 1.25.
    Mine still stuck because brake pads were expanded try turning the star wheel adjustor as well.
    Then you need to turn it the other way.
    See my post on the other thread.

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    Default Re: What bolt size can be used to remove brake drums?

    hi 5lb or 10lb Sledge Hammer. gorilla lol tats wah i used rotflmao

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    Default Re: What bolt size can be used to remove brake drums?

    ^^ Gorilla, you made me cringe, reading that...

    Rubber mallet has always worked wonders for me...That way, you can whack that b!tch as hard as you want.. Even for the worst rust that western NY can turn out, has never stopped my mallet from getting them OFF!!...With ZERO damage to parts...(and fingers, and old, arthritic joints, as well... )
    Last edited by Stone_Blue; 01-02-2015 at 08:31 AM.

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    Default Re: What bolt size can be used to remove brake drums?

    8 x 1.25 - been there before with my 2006---fun times

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    Default Re: What bolt size can be used to remove brake drums?

    After finishing found out my brake pads were not adjusted right the Emergency Brake was not working.
    Should have left the rear suspended on the jack stands and tried out the Emergency Brake to get the adjustment right. Read to expand star wheel brake adjustment until tire wouldn't move then contract 8 clicks. Problem is the clicker does not make the clicking noise when contracting the brakes. Should have made the adjustment while truck was still on the jacks which would have made things a lot easier.

    Thanks EVERYONE for all the input.
    I almost gave up and took it to a mechanic but I'm too much of a hard head to give up on anything.
    A lot of aggravation but still have my pride.
    Last edited by Shane1962; 02-07-2015 at 06:11 AM.

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