Help me decide 265/70/16 or 265/75/16?

I think I nailed down the tire. Local shop has Toyo Open Country ATII/SL in stock.

I can't decide between sizes. I am one to always go with stock size since I am a conformist...BUT I like the look of bigger tires. I just don't want to mess with any issues that might arise. So I'm wishy washy.

I would like to upgrade to gunmetal TRD wheels but don't have the money right now so will stay stock OR rims.

 

I recently retired my stock tires for a set of 265/75/16 Cooper Discoverer Road + Trail AT, and haven't noticed any negatives or benefits in the ~1500 miles I've put on them. My truck drives the same. The size doesn't even look that different to me.
Hopefully that sweet extra 1/2" of ground clearance comes in handy this summer when I hit some trails

 

75's. Slight mileage drop. Never had issues with rubbing.

 

It's actually 1" taller and a no brainer. Won't make it succeed over obstacles the you previously couldn't and you most likely won't note the MPG hit either. Speedo will display slightly more accurate based on what others have reported.

I'm more than likely going with that size also.

 

Do not buy the ATII, buy the ATIII it is an updated superior tire.

Yes, 265-75-16.

 

265/75r16 no doubt

 

I lost 3 MPG when up sizing to the 275 75 16. They do look significantly better though especially on a long bed.

 

It was a typo, ATIII

 

Swampers. Any size will be fine.

 

75’s are a no brainer. A little higher, look better, no performance loss. They have been on my 2017 for 3 years.

 

Part of the mileage “drop” is that you’re running a tire with a larger circumference. You go farther for each tire rotation. The difference for these two sizes is 3,3% meaning your mileage (and speedometer) are “off” by 3,3%. So if you were getting 17,5 mpg before and now you only get 17 mpg it’s actually the same, adjusted for circumference and actual distance traveled.

 

Just to keep in mind, a good friend of mine wanted the new BFG KO3 for his Ram, called the local BigO shop which said they had them in stock. Sadly after he paid and got home, he noticed they installed the older KO2. They fought him about it and he is stuck with them.

 

be a wild man.....show off that extra inch

 

That extra inch is where all the fun happens!

 

The cheaper one. You won’t notice a difference.

 

He’s not wrong

 

"Federal Regulation: 49 CFR §393.82, effective 2005, requires a car’s speedometer to be accurate to within a plus or minus 5 mph at a speed of 50 mph."

Some of our trucks are probably off from the get go.

 

Agreed that there’s likely a margin of error with a speedometer. But it’s the odometer, not speedometer, that’s used for calculating gas mileage. Speed is a product of mileage and time.

I’m just saying that changing tire size and observing a drop in mpg is not necessarily due to a tire being less fuel efficient. Some/all of the difference may simply be a math problem. Also, any measurement error would remain consistent for a single vehicle so the only variable is the tire (size, weight, tread pattern, rubber compound, etc.).

 

Go with the 75 especially if you are going to change up your shocks and lift later.