Tire weight rating

denny9742 · Nov 11, 2016

whats the lowest rated tire you guys would feel comfortable with? Time for wheels and tires soon and I've got my sights set on toyo rt in 33x12.5x18. Only problem is that they are rated for 2910lbs. What do you guys think?

sagebel · Nov 11, 2016

Look at the metric LT sizes, you will get a higher weight rating from them. A 20" wheel will get you more tire capacity as well. The stock 275/65r20 is 34" tall and rated for 3750 pounds and I won't go below that.

WHY NOT · Nov 12, 2016

Do you ever haul or tow with the truck? I think my current summer tires are only rated at like 3300 lbs and I have had quite a bit of weight on them. Just remember pressure speed and heat are all important under a heavy load. But hoping I can find some with a higher rating for the next set.

ToMang07 · Nov 12, 2016

Putting under-rated tires on is just foolish, and depending on local laws opens you up to liability.

denny9742 · Nov 12, 2016

when my transfer tank is full ive got about 1100lbs in the bed between it and tools. tow a light trailer (4k) almost every day. Sounds like the nitto ridge grappler is going to have to do.

96F350KID · Nov 12, 2016

That's weight per tire which is figured on payload. You stated you have 1100lbs in the bed and pull a 4k trailer. If your trailer is loaded properly you should have 5-700lbs on the tongue or the rear axle of the truck. Not 4,000 lbs sitting in the bed. Add the weight of the rear of the truck to that, typically 2,000lbs give or take. That still leaves you 2,020lbs in the clear with the R/Ts rated @ 2910ea or 5,800lbs combined. That's if you have a SRW F350. If you have more than 5,800 lbs in the bed of a F350 I'd be worried if you have more than 5,800lbs of payload considering the max the truck is rated for is 4,500lbs!

WHY NOT · Nov 13, 2016

Sounds like those tires would work, but like other have said a similar metric size may have a higher load rating to give some more cushion if you are loaded heavier for some reason

TyCorr · Nov 13, 2016

My d rated mickey thompson baja claws had a per tite rating of 3450 which is hard to reach for a mortal. I even called, asked them and they said id have ZERO troubles. Now Ive got e's rated at 36xx each.

denny9742 · Nov 13, 2016

you guys make good points. ill probably end up going with a more narrow tire to get the weight rating up. having to pull a large skid steer is a possibility on occasion and it wouldnt be worth the risk with that behind me.

TyCorr · Nov 13, 2016

How is width pertinent to rating?

WHY NOT · Nov 14, 2016

TyCorr said:
How is width pertinent to rating?

I think people see it as going from an 80 psi tire to a 65 psi tire as a lower load rating which isn't true. 3300 lbs is 3300lbs at 80 or 65 psi. Just stick with an E rated tire so its a 10 ply vs a D which is 8

TyCorr · Nov 14, 2016

WHY NOT said:
I think people see it as going from an 80 psi tire to a 65 psi tire as a lower load rating which isn't true. 3300 lbs is 3300lbs at 80 or 65 psi. Just stick with an E rated tire so its a 10 ply vs a D which is 8

I agree. I went to a 10 fir that reason but i didnt have any structural issues with the d's.