Questions to those that upgraded from 265/70/16 to 265/75/16

Hi all and thanks for looking at my thread.


Basically the factory tires on my truck are toast. I need 4 new tires and a alignment. I'm thinking the 265/75/16 are only going to cost a little more that the stock tire size. But I have some questions to those that already did this switch.


First, did you replace the spare as well? Will the bigger tire fit in the spare spot?


Was there any alignment problems after the switch?


Was there any downside to the switch? Did your mileage change at all?


Was there any upside to the switch other than more ground clearance?


I still have not picked a tire yet. I do have the off-road package but I am mostly an on-road driver. Here in New Hampshire I need something that's all-season but can handle snow/ice easily. When off-road there is always plenty of Mud but that is not my primary concern. I'm thinking Goodyear but am open to suggestions.


Thanks again for the help.


- Brian

 

Dig deep enough on "search" and you will find countless versions; good & bad..

Being a neighbor I will give my specs.......2002 Tacoma 4x4 ;2009 TRD wheels with 265/75/16 General AT2's, 3/4" Bora spacers on front to keep the UCA's and tire from "touching"..no spacers in back....NO OTHER MOD's needed...

They do rub backing up the small driveway incline but that is only on the mud flap hardware and can be noisy up front if off tilt turning hard in either direction...

These tires have handled everything NH can throw at them plus....easily handles my small Class 6 adventures and my MPG's dropped slightly ..

Good luck but you have checked $$$ ,moving up that small amount can be $$$ if your not careful...

 

i will find with many brands the 75s are cheaper than 70s. 265 75 16 is a more common size. LTs are not needed unless you do major off roading, i resently switched to 75s the ride improved a little. no problem with alignment, you will notice a slight drop in fuel mileage mine dropped 1.5mpgs not much for an improved look and stance. this is just my opinion but go for it

 

Thanks for the opinions.


I'm leaning toward going for the bigger tires but using "search" I have noticed that some people complain that their speedo is off. I thought they could adjust the speedo buy telling the computer what size tires are on or is this an urban myth?


Also, using "search" I have found the answer for the spare. If I need to use a smaller size spare I will be OK to get to the tire store and have the correct size tire fixed/replaced.


Still haven't picked a tire but leaning toward some mud/snow all season.


- Brian

 

I upgraded from my SR5 stock 245s to 265/75R16s without any issues on a stock DCSB 4X4. I checked the speedo with my GPS and it's now exact. I guess it was off by reading faster than I was going with the smaller tires. I've read a few posts with similar results. No issues with alignment but my mileage did go down about 1-2mpgs. That may be due to the speedo being more accurate now and it also could be due to the cold weather or both.

 

I have a 2" lift and no mudflaps.....
When I switched to 265/75/16, I had no rubbing issues at all.

I've had em soo long I can't remember if I had any mpg change, but now I avg 21mpg if that helps.

I fit a 265/76/16 in the spare location with no problem and no modifications at all. I just watched it closely as I hoisted it up just in case.

Trucks always aligned with no problems at all..

The speedo reads closer but is still off a tad according to gps.


I'm running Goodyear wrangler authorities in load range C (6ply)..... Some road noise but its not too bad... The are very similar to the duratrac but have slightly less aggressive sidewall lugs, but I think more aggressive center tread pattern. They are an A/T rubber compound but more of a mud terrain tread pattern and has great self cleaning properties so far.

 

Also ran Firestone destination a/t before with good results... Also available in a load range C.

Before that I ran Goodyear wrangler silent armor in a Pmetric 265/70/16. Decent tire.


All the above iirc were M+S severe weather rated (snowflake)

 

Responses above

 

Recently added 5100's and 1.25" spacers. I was already running 265/75/16's rugged trails and just switched to a way more aggressive mud terrain 265/75/16's E/10ply treadwright guard dogs and I only rub at full lock in reverse.

 

I have 265/75/16 mtx's I also have a plate bumper and no lift...very little rub in reverse on driver side only...you should be fine.

 

265/75-16 fits perfectly, never a rub on or off roading, the speedometer now reads accurately instead of too fast. So, the false gas mileage you recorded will go down a tad, but it is now honest mileage.

I have on the second set of 265/75-16's since I replaced the Rugged Fails at 20,000 miles. First set were Hankook Dynapro ATM (really liked the tire, but didn't get a lot of miles from them, about 30,000). Now I have Dakotas from Pep Boys (made by Cooper).

All P rated... I don't haul heavy loads, and the truck came with P rated BFGs.

 

Thanks everyone.


The speedo being off seemed just wrong to me. How could Toyota do that? But I downloaded an app for my android and tested it my self. It's about 3 mph off at highway speeds.


I have decided to go with the 75's. Worst case I will remove the mud flaps. They rub going over speed bumps anyway. If anyone has used the Goodyear Wrangler SilentArmor in the 265/75/16 size let me know your experience. Also tirerack.com has the same size with Kevlar for slightly less money so if anyone has used those I would love to hear from you as well.


I will be sure to post my results.

- Brian

 

i'm running Hankook Dynapro ATM p265/75/16's. I see mostly pavement, a little dirt, and some snow in the winter. I have them mounted on 16" countersteers with 4.5bs.


When I first installed them on the truck I wasn't lifted. I had a very very slight rub at full lock in both forward and reverse. Now that i'm lifted, a little less than 2.5" in the front, I have no rub at all.


I've driven less than 10,000 miles on these tires but I love them so far. They seem to be wearing well and they're very good in the snow.

 

Speedo can be off a little just between new tires and worn tires because of the constantly decreasing outside circumference of the tire. I wouldn't worry about it too much other than to keep it in the back of your mind while driving. Even with a correct speedo you'll only really be spot on for a few weeks/months in the tire's life.

 

From what I read, mfrs can get in trouble with DOT if the speedo under-reports the speed, so they calibrate the speedo to over-report by a small margin to account for production variations.

The odometer should be accurate with the stock tire size, so add 3% to your calculated gas milage if you run a 32" tire.

From the reviews I've read, the SilentArmor tire doesn't age well. After a few years the Kevlar layers become brittle, resulting in broken or delaminated plies. Traction is reportedly quite good when the tire is working.

 

I have been looking and the Duratrac thread. They look AWESOME. But the Goodyear web site say's they won't fit. They don't make 70's. Has anyone run them WITHOUT a lift kit?

Thanks again.

- Brian

 

Thanks again everyone for looking at my thread.

The local yoda dealer could not get the duratrac's. Their loss.

The local Goodyear shop had no problems. They were installed today with no rubbing issues at all and the mud flaps are still there. Alignment was done as well.

I haven't really tested them much yet but so far.
1) I sit a litter higher up on the road. Since I had to replace the tires anyway this made for a cheap lift.
2) No noticeable loss in power.
3) The speedo is much more accurate. I won't say dead on since I'm comparing a digital GPS speedo to and analog one.

The Goodyear shop set the PSI as 32. Looking at the tires after driving and seeing where it picked up salt, 32 is to much. I will have to play with the tire pressure.

I would like to sell the spare and pick up one more of these tires. If anyone has sold just one tire please tell me how you did it. The goodyear shop did not want it.

Snow is scheduled for tomorrow. I'll drive around in it and let everyone know how it goes. Also I took some before pictures, as soon as I collect some after pictures I will post them.

- Brian

 

You happen to have any photos of your truck on stock suspension after getting the bigger tires? I'm trying to decide 265-75 vs 70's.

 

Here's a few...

 

Thanks much! Any issues with "gear hunting" on the hiway?