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Tire Size Options

Cheekster96

By Cheekster96
in Tires, Wheels & TPMS

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Cheekster96 Enthusiast

Cheekster96

Posted
Posted

Howdy all. Just a quick question...I have a '04 Sierra Work Truck 4x4 with the steel wheels and 245/75/16s on it. Can I go to a larger size (265/75/16) on these rims? Getting to the point where it is time to start looking for tires (tire rack has lots of options).

 

Anbody have any pros and cons with going to a larger diameter tire over stock? It will be a "P" tire vs an "LT".

 

Thanks all.

 

Lee

Knowklew Enthusiast

Knowklew

Posted
Posted

I would not buy "P" tires for my light truck.

 

LT tires are meant for light trucks, towing, hauling, etc..

 

P tires are made for passenger cars.

 

245/75-16 = 30.46'' Diameter, 9.64'' tread width

 

265/75-16 = 31.64'' Diameter, 10.43'' tread width.

 

The wider tire will probably cause lower gas mileage because there is more friction to the road as well as the tire itself will be heavier.

 

You might have some rubbing issues too, I would go as far to say as you would have rubbing on hard turns.

tbhuge Enthusiast

tbhuge

Posted
Posted

I would not put a P tire on the truck, especially since it is a work truck. One other size you may consider if they offer it in your specific model is 265/70-16. This is what I have on my truck and it has zero rub, fits on the rim, as well as the overall circumfrance of the tire is very very close to the original tire. This means that your speedometer will be off by next to nothing.

kawtoy_77 Enthusiast

kawtoy_77

Posted
Posted

If your truck is a half ton; listen up.

 

I would not buy "P" tires for my light truck.

 

LT tires are meant for light trucks, towing, hauling, etc..

 

P tires are made for passenger cars.

245/75-16 = 30.46'' Diameter, 9.64'' tread width

 

265/75-16 = 31.64'' Diameter, 10.43'' tread width.

 

The wider tire will probably cause lower gas mileage because there is more friction to the road as well as the tire itself will be heavier.

 

You might have some rubbing issues too, I would go as far to say as you would have rubbing on hard turns.

P-series tires are not just for passenger cars, 1500 series trucks come FROM THE GM FACTORY with P-series tires. Unless you are constantly overloading what your truck is capable of (which is not advised to start with) then a P-series tire is fine. They cost less, and will improve your MPG's & braking distance by reducing rotating mass.

 

 

I would not put a P tire on the truck, especially since it is a work truck. One other size you may consider if they offer it in your specific model is 265/70-16. This is what I have on my truck and it has zero rub, fits on the rim, as well as the overall circumfrance of the tire is very very close to the original tire. This means that your speedometer will be off by next to nothing.
W/T is just a trim level and means nothing more than that.

 

If you opt for a P-series tire though, make sure you check what the max load per tire is; which is on the sidewall of the tire.

 

For example: My truck has a GVWR of 6400 lbs. My tires are rated at 2535 lbs per tire, which totals 10,140 lbs. If I subtract the weight of my vehicle (6400lbs), from the maximum allowed weight of the tires it leaves me with and extra 3740 lbs. Considering the manufacturer only recommends 1000 lbs as payload, I still have a gray area of 2740lbs as a safety factor. LT tires are good for heavy hauling, a towing rig, HD trucks, 2500 series, and the 3500 series.... Otherwise you are just paying for more tire than you trucks capable of handling.

Mckenzie Senior Enthusiast

Mckenzie

Posted
Posted

My truck fit some 33's (285/75/16) before i had the leveling kit and it did fine...you'll take bump in the mpg...but it will look pretty good!

Cheekster96 Enthusiast

Cheekster96

Posted
  • Author
Posted

All great stuff. Thanks all! I am leaning towards going with the P type tire. I dont do alot of heavy hauling and tow a boat that weighs about 2000lbs. The most I have in the bed is some wood and my tent and the rest of the camping gear. The truck doesnt squat at all and there is no bulge in the tires when it is loaded out. It is the W/T trim set up and I dont use it as a work truck per say. Plain jane as they come, has A/C and thats about it. Not even a cassette player in the radio! I like the 4.8 V8 in it. Have gotten 19mpg on a 90 mile Turnipke commute doing 65 (still on winter gas) and last year on the same commute on summer gas, got 21 (after a good tune up). Pretty impressed with it.

 

Thanks again all.

 

Lee

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