Tire sizes

FWB in SK · Jul 15, 2021

Need tires for pickup.On know LT245x75-16.. Sale on 245x75-16.. What is the difference.. Size, road surface or?

SVcummins · Jul 15, 2021

Lt are usually heavier rated tires

Leroy · Jul 15, 2021

I use the LT 245 75 16 tire and I have not heard of any of that size that were not a LT tire. Wonder if somebody was just to lazy to put in the LT. LT meaning light truck.

Jim.ME · Jul 15, 2021

(quoted from post at 04:57:46 07/15/21) I use the LT 245 75 16 tire and I have not heard of any of that size that were not a LT tire. Wonder if somebody was just to lazy to put in the LT. LT meaning light truck.

There are 245 75 16s in the Passenger car (P) series, not Light Truck (LT) series. The P prefix is not always shown, and the ply ratings would be in the 2 - 4 ply range ratings, not the heavier 8 - 10 ply ratings of the tires which have the LT prefix.

BarnyardEngineering · Jul 15, 2021

No tire dealer that's concerned about liability would put P-rated tires on a 3/4 ton pickup truck. They will only sell you the correct tires for your truck.

So you need to go to the tire dealer for clarification on the tires that are "on sale." Ask if they are truck tires or SUV/car tires? Ask to see the tires. They should have the LT prefix on the side, say "Load Range E" somewhere on the tire, may say "10 ply rated" as well, will have "120/116" which is the newest load index standard.

The load ratings all mean the same thing, and will mean something depending on how old you are. Old people will understand the ply rating. Middle age people will understand the load range letter. Young people will understand the load index numbers.

ss55 · Jul 15, 2021

Metric and P tires are lower pressure tires than LT tires. Look at the load range (plys) and load index (capacity) on your current tires. If you have a half ton pickup you might find P265 or P275 wide tires that carry the same load (load index) as LT245 C or D range tires at lower pressure for a softer ride and still fit on your existing rims. Most tire manufacturers and dealers have info on their websites.

www.discounttire.com/learn/basic-tire-info

Kansasredneck · Jul 15, 2021

If you have duals, you MUST have LT rated tires. If not, standard passenger grade tires are allowed, but you won't have the load capacity. If your truck is a substitute for the traditional family wagon, have at it, but if you regularly haul loads or drag trailers, stick with the LT.
Fwiw, passenger grade generally offer a smother ride, but lack traction in mud snow etc.

Brendon-KS · Jul 15, 2021

Passenger car rated P245/75R16 tires are quite common and were popular on SUV's and half-ton pickups before larger diameter rims became the norm.

504 · Jul 15, 2021

You really have to watch with all of the new tire sizes in the last ten years. My half ton takes P rated tires,last winter I got tired sliding around, and the only rough tread I could find in that size are 10 ply load range E.

Tire sizes

FWB in SK

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SVcummins

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Leroy

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Jim.ME

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BarnyardEngineering

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ss55

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Kansasredneck

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Brendon-KS

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504

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