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Wandering JK with General Grabber AT2

 
Old 05-29-2019, 07:28 PM
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Unhappy Wandering JK with General Grabber AT2

At 22k miles the BFG Mud Terrains on my 2016 Rubicon were both terribly noisy (despite religious rotations) and they were cracking at the bottom of all the lugs. Figuring I'd up the size just a bit, I chose 285x70-16 which are mounted on the stock rims. Prior to doing this I checked the rim specs on the new JL and it seems the rim width is the same as my JK but with larger tires. The General Grabber AT2 are about 1.64" taller and 1.18" wider than my stock tires, all clearances are fine. JK has stock suspension without any mods.

Highway driving with these tires finds them pulling me all over the road, left and right. It's not bump steer or the centerline groove, it's every road, every condition. I tried raising the pressure, that didn't help but it did ride much worse. Today I checked the toe in with a ruler and makeshift bars attached to the wheels and it appears to be close to factory spec.

Any idea how to address this other than a different set of tires? The Grabbers are great tires in both mud and snow, I'd hate to give them up but I will if I can't fix the issue. Perhaps it's not the tires, but I don't recall this occurring with the OEM tires. Thanks for any and all help!
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Old 05-30-2019, 03:07 AM
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It may be that u need to decrease the pressure. The oem tire were a load range C tire and the new ones will be D or E most likely. What pressure are you running. You may need to drop down to 30-ish lbs for an E rated tire otherwise you are driving around on the center of the tread.
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Old 05-30-2019, 06:55 AM
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That size grabber does indeed look like an "E" rated tire.....really stiff sidewall. I'd agree with the lowering pressure comment as a start.
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