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Front bumper bolts

unaseer

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What size bolts mount the JL front bumper to the frame? I sold my bumpers and accidentally gave the guy my bolts. The dealership doesn't seem to know.
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melendez69

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RockyMtnHigh

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There are 4 M8x1.25 bolts (Grade 10.9), on the inside and outside of the frame rails. The other 8 bolts that hold it on (attached by the tow hooks) I'm not sure about. I think they're larger than the others, probably M12.

Edit: I just realized the M8's I was talking about were made for the winch plate mount. The ones for the bumper came off with a 16mm socket, which points toward an M10 bolt. 18mm socket for the other 8, which suggests an M12 bolt. There's no exact measurement, but it's a good indicator.
 
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mintswitch

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I know this is an old thread but just in case this helps anyone out while searching... I just got done mounting an aftermarket winch plate and the bolts used for the frame rails where the winch plate mounts to are M10x1.5 grade 10.9.
 

yingsuhuaqi

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I know this is an old thread but just in case this helps anyone out while searching... I just got done mounting an aftermarket winch plate and the bolts used for the frame rails where the winch plate mounts to are M10x1.5 grade 10.9.
May I ask how long is it? I can find some M10*1.5 GRADE 10.9. But I dont know how long it should be. Thank you!
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