Anyone regret going to 275/70/18’s on their stock Tundra?

Most will hardly notice a change moving up a size, but you will notice a gain moving back down to the smallest standard size.

 

Mine did on the front small mud flap

 

Greetings, all! I'm new to the forum... I just purchase my Tundra a couple of weeks ago... had the dealership install a 3" lift. I had the 275/70r18 BFG A/T KO2s installed yesterday. Modified the skid plate to get rid of the rub... Now I'm wondering if it's necessary to re-calibrate the speedometer. Anyone have any experience with calibration? How far off will my mph really be? I can't imagine it would be more than 3-4%. The hypertech module looks like a PITA to install, and I've been reading about some issues with them. Are there any others out there? I'm coming from a JK Unlimited, and re-calibration was a piece of cake.

 

@matzelle I have the same size but did not have to remove anything and no rubbing issues. As far as the MPH, it isn’t that significant of a change. About +1-2mph if your going 65-75mph.

 

For any of you, I’m going to do stock wheels and suspension on 275/65/18 or 275/70/18 for this upcoming build. Any real rubbing besides that lame front screw in flap?

I’m leaning Cooper AT3 XLT. I do a lot of camping and off-roading in the middle of legit nowhere Nevada. Can’t afford to get a flat or puncture out there in the 5ply Michelin’s even though they’re great for everything else.

 

That's the part some people don't seem to be getting. Going up one tire size larger would be almost unnoticeable if you stick with the same type of tire but when you go from a passenger car rated tire with a "highway" tread type to an "E" load rated heavy truck tire with an aggressive offroad or AT tread pattern, you're going to feel and see the difference, even if you stick with the same size.

275/70R18 is a very common truck tire size right now and a lot of us aren't towing heavy loads so we have no need for an "E" load rated tire. Why there aren't any decent AT's tire in the "C" or "D" load range is beyond me?

And that's the only downside of going 275/70R18 right now. No one makes an non "E" load rated tire in that size that's any good. Even the Michelin LTX's in that size are still E load rated tires weighing in at 61lbs each (which is ~20lbs per tire heavier then the factory installed tires)

 

I have a 2019 Pro and was thinking of getting the BFG K02 in 275/70/18

 

Do it.

 

I am very happy with my 275/70/18 Falken Wildpeak AT3W 2500 miles in! These Tundras can handle the tire size. On my 2015 f150 2.7l it was awful and I returned to stock tire size.

 

Just got Bridgestone A/T 275-70/18 and love them. A bit rougher on road but worth it because they look better and will handle m

 

I have stock size 275/65/18 Cooper AT3 4S in a p rated tire not LT. They are only 44lbs each which is nice, and my speedometer factory is 2 mph off to the negative at 80mph per GPS(speedo reads 78) Since the difference at 80mph between the two is 2.7mph and at 70 it is 2.4mph, your speedo should be spot on accurate if you go with 275/70/18. I’m considering the AT3 XLT or the ST MAXX when I need tires next in 275/70/18. I did want 295/70/18 but I don’t think I need to go much more than a 33” tire vs a 34.8”. I’m just looking to level it with 5100’s and then put on 1 or 1.25” BORA spacers

 

I did those tires in 275-70-18 on my stock '19 TRD Offroad because I couldn't trust the stock tires offroad. It rubs that little mudflap in front when I am in full turn backing up. Haven't had the time to remove them yet but I will hopefully this weekend. Otherwise the XLT tires are really nice. Quiet at highway speeds, remarkably so. Did some offroad on my summer vacation in UT, CO, NM and AZ and they did really well most everywhere, and were even passable in damp clay. After decades on my previous trucks with the BFGs, I'm really impressed with the Cooper XLTs. No regrets (well, I did lose .5~1mpg depending on the conditions/speed but was expecting worse so I'm good). Good tires, worth losing a dinky mudflap.

 

Stock suspension?

 

Yup

 

I’ve been debating on this increase as well. My previous two tundras 05 had standard 5 ply tires and my 10 had standard tires then upgraded to some rock warrior wheels with 10 ply tires. The ride handling was certainly more harsh feeling with the 10 plys, which is what makes me consider now on my 17 going with the tires I want but in the 5ply version to help keep the ride as comfortable as it is.

 

What did it do to the speedo / ODO accuracy?

 

I didn’t do anything. Honestly my speedometer is on with these tires, but odometer is slightly off, but not much.

 

I just realized recently that it is a common truck tire because it comes stock on F350 trucks, thus why most brands are focused on e rated most likely

 

Wrong.

 

OMG, you traded your kids in on tires and wheels! Was your wife mad?

 

Any rubbing? Offset?

 

+25. Removed front mud flaps and cut the bridge of the cab side mudflats. But no rubbing at all

 

This is the setup I’m looking for. Looks great.

 

Regrets on f150, not Tundra. Much more robust vehicle

 

I went with 275/70 r18 Goodyear duratracs. No rubbing stock suspension (2018 trd crewmax) I had removed the little wind deflectors the day I bought the truck new (they’re ugly as sin).

 

Maybe I'm missing something but it seems like the bigger change in going from P rated 275 65 to E rated 70 is with the heavier load rating (so 10-15lbs heavier and stiffer) rather than the rather insignificant 1" height increase.

I can see the only reason to go with 275 70 is to get the E load rating if you tow, haul, or off-road often.

 

I don’t notice any difference in the ride quality at all going from the p to the e. I’m running 45 psi. I like that the 10 ply tire is more durable. These trucks shouldn’t come with p rated tires, they should have at D rated lts.

 

I just put some 285/65/18 duratracs on last week and I love them. No rub, no trimming/skid plate modification. They come in a load range D- 5 ply so I don’t notice any mileage or difference in braking and very smooth on the highway!

 

Dude, that is a really nice truck. I don’t see that color often

 

How much caliper clearance do you have in that 18" rim? Is that a TRD and what year is it?

Thanks