Nitto Trail Grapplers chunking out?

[gr8jbull]

Running 37's @ 37psi with 3.5" lift and... drive rear wheel {only} is chunking out; crazy wear on outside lugs. Suggestions?

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[Kreepin1]

There appears to be a lot of cracks in the carcass as well. Are these new tires? If so, go back to the tire shop and have them replaced. If not, check the date of manufacture, those tires are shot…

 

[TKL223/3]

With the amount of weathering that’s not on the tread blocks, It looks like you’ve had those tires on your Jeep for years?

 

[Tool Guy]

37 PSI is a bit on the high side for 37's, I'd be more like 28 PSI on a Load Range D. They do look like they must be few years old. Any idea of age? BTW Air pressure is not a factor in the chunking.

 

[XJfanatic]

The dry rot in the carcass between tread lugs is a Nitto thing. Every set I have seen over a year old looks that way. My RG have 15k and 16 months on them and look the same.

chunking looks like they rubbed something at some point. Could have just taken time and miles to open up. Were these ever off-road? Spun from lack of traction?

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