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Size of Installation Bolts Used on Draw-Tite Class III Hitch # 75579 on 2010 Dodge Grand Caravan  

Question:

What size are the frame bolts on a 2010 Dodge Caravan that are used to attach a trailer hitch?

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Expert Reply:

The # 75579 Draw-Tite hitch uses existing bolts that are removed and then reused to install the hitch. If the bolts are currently in place, and haven't been previously used to install a hitch, they can be reused.

I do know that the rear most bolt on each side is a M10, and the other two on the driver's side and the other bolt on the passenger side is a M12. The bolts have a 12.9 level of hardness.

I wasn't able to find the bolt length or the thread pitch, nor could the hitch manufacturer. If you're looking to replace the bolts, your Dodge dealer can tell you the exact size.

expert reply by:
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Mike L

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