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Tire size stock truck

nh09z71

By nh09z71
in Tires, Wheels & TPMS

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nh09z71 Enthusiast

nh09z71

Posted
Posted

I have 63k on my OE Bridgestone's, so it's time to start looking at new tires. I've just about narrowed my search down to Cooper A/T3. The stock tires are 265/65R18. My truck, an '09 1500 Z71 is totally stock. Can a larger tire be put on with no adverse problems or rubbing? I understand the speedo will be off a bit, but I'm already a bit slower than my speedo reads now.

 

 

Thanks.

Blue2500CC Enthusiast

Blue2500CC

Posted
Posted

I am almost positive you can run a 275-65-18 w/o a leveling kit

 

 

I don't have any issues with 275/65/18 A/T3's that I just got about 2 weeks ago! No pics.... truck is STILL dirty! Lol Just haven't had time to wash the beast!

 

Chris

nh09z71 Enthusiast

nh09z71

Posted
  • Author
Posted

Called a few tire place today for prices....The place I am probably going to buy from tells me that the 265/65's are pretty much a P rated tire, while the 275/65's are a 10 ply tire. The price difference isn't all that much, but I'm wondering how much difference there will be in handleing and MPG?

 

I do drive on gravel roads quite a bit, and my truck is on construction sites every day, so the 10 ply should be more durable. I am also thinking of getting a travel trailer for when I am working on the road.

Big Whiskey Senior Enthusiast

Big Whiskey

Posted
Posted

Going from a P-rated tire to a LT, 10 ply, E-rated tire is going to effect your handling and MPG. It will ride more stiff and your MPG will drop. However, those new tires will be much stronger than the stockers. There are plenty or companies that make a 275/65/18 tire in P-rated as well. Also, Cooper, Mastercraft, and Goodyear make 275/65/18 tires in a LT, but they're 6-ply, Load range C....which would be my choice, because they're stronger than the stock tires (6 ply vs 4 ply) but not as heavy as a 10 ply.

nh09z71 Enthusiast

nh09z71

Posted
  • Author
Posted

Thanks for your help. I called the tire shop back today, and he can get the A/T3's in the 275/65 18 in a C load range. They are only $5 cheaper than the E range tires, and he'll give me the E range tires for the same price. I told him my concerns over ride quality, and he says as long as I don't put too much air in them, the ride will be fine. And I'll have the ability to put more air in them if I need to for towing.

 

I cant seem to find a weight difference for the two tires online.

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

Buy the Cs. If you run E range tires at too low a pressure they can overheat and fail.

 

 

Sent from my iPhone using Tapatalk

nh09z71 Enthusiast

nh09z71

Posted
  • Author
Posted

Got the new tires installed yesterday. I have about 250 miles on them so far.....and, while it's not a fair comparison of new tires with 16/32" to old tires with 3-4/32", so far the new ones are great. Pretty smooth at highway speeds, and not too loud either.

 

Going up one size to a 275/65R18 is no problem on the stock truck, and they look pretty nice.

 

Thanks for the help.

nh09z71 Enthusiast

nh09z71

Posted
  • Author
Posted

Pics might come later, traveling this weekend so i don't have tons of time.

 

As for MPG....hard to tell. It's been pretty warm here....been running the AC quite a bit. MPG has gone down some, but it's probably a combination of the new rubber and the AC being on so much.

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