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Discussion Starter #1
I just had 285/70/17 load E BFG KO2's (new) installed on my truck last week and they are extremely loud starting from 20mph. I realize these are AT's so I anticipated some tread noise, but these create a loud humming noise that get proportionally louder as the truck increases speed. Its loud enough to mask all engine noise and its almost unbearable at speeds 50mph +. The only time the noise disappears is when making sweeping (not 90 degree) right turns. I had them installed, balanced + aligned twice with the same results. We tried removing the Spidertrax spacers to see if there was any changes, but the noise continued.

The folks at the tire shop called it 'drone noise'. They see 1 out of 50 cars experience this issue but they said that there was no known cause or fix for the condition.

Can anyone shed light on the matter?

I'll have to select a new set of tires to replace these units. Anyone have experience with General Grabber AXT or Falken Wildpeak At3's? The tire shop folks said I could have the same "drone noise" issue and Im hoping to install a new set of tires and close this case.

TIA
 

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I have the BFG KO2, 285/70/17, load C and they've been the perfect tire. What kind of wheel did you put them on? If the noise dissapears when turning maybe its going to be something with your suspension in the front?

imo unless you're towing or doing extreme offroad and need 10ply side walls, opt for load C. they're cheaper and lighter.
 

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Discussion Starter #3
Thanks for the feedback. The load E’s are heavy, you feel the excess weight on acceleration and stopping. They’re mounted in the factory split spoke 17’s.

I just had the steering rack replaced before they were mounted so I’m assuming the front end suspension was tightened to spec.
 

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I’ll vote for Toyo Rt tires.... love them on my sequoia. I have 35x12.50x17 on factory 2006 wheels with spidertrax spacers. Mine is lifted and has an aftermarket bumper to better fit the tires...

Nice and quiet, but still has an aggressive tread.
 

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I have BFG KO2's Load E on my 2001 Tundra and don't have any problem with noise
 

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Discussion Starter #6
Heres the update thus far:
My tire shop helped me with a warranty claim and got a replacement set from BFG (another great reason to support your local tire shop). After they installed the new set, the drone noise was eliminated at all locations except the front right side. They tried mounting the tires from the other locations (back right, back left, front left) on the front right and the drone noise was persistent. As consistent with the original set of tires, the noise disappears when the steering wheel is turned to the right past the 2 o’clock position. That leads me to believe there’s something going on with the front right assembly.

it’s going back to the shop and hopefully they can figure out the issue and resolve it. I’ll post updates as we continue the saga.
 

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Discussion Starter #7
Success! After two sets of tires and weeks in the shop, my mechanic located the source of the noise. It turns out it was a failed wheel bearing that also destroyed the wheel hub. The shop was able to have warranty replace the bearing and hub as it was only 2 years and 2k since installation. So the moral of the story is have a good mechanic that will go to bat for you when necessary.
 

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Glad you found the problem. And glad to see you come back and post what the issue was. Sadly that doesnt happen as often as it should.
 
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