Largest tires on stock wheels, no lift, but with 129 Load index (4080lbs)

flafonta

Tremor Buff
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I know there are lots of posts about tires, but can't find this.
What are the largest tires on stock rims that would maintain a 129 load index (4080lbs) or better, and without mods to the suspension?
I see some 295/70R18 with 129 load index, but that is it. Looks like the larger 15x12.5 tires have a lower load capacity (and don't officially fit on the stock 8" tremor wheel).
I need the full load index as I will carry a slide-in truck camper.
 
I know there are lots of posts about tires, but can't find this.
What are the largest tires on stock rims that would maintain a 129 load index (4080lbs) or better, and without mods to the suspension?
I see some 295/70R18 with 129 load index, but that is it. Looks like the larger 15x12.5 tires have a lower load capacity (and don't officially fit on the stock 8" tremor wheel).
I need the full load index as I will carry a slide-in truck camper.
I ran Nitto Ridge Grapplers on my '13 in a size of 295/70/18 which is what you're looking for.
 
I’ve been looking around and finding a lot of the same things. For me personally I’m probably just going to stick with the OEM Duratracs unless I jump up to a larger wheel to allow for 12.5” tires … knowing full well that will lower the rating.

I know there has been a lot of debate about the Duratracs, but I’ve got 34k on them and can’t knock them.
 
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