Changing tire diameter risk vehicle warranty?

Looking at changing tires from stock 265 65 R17 to 265 70 R17. Increases diameter and creates about an1" in height. Seems this would not only effect the speedometer and odometer but also the traction, torque and gear systems. Any risk of messing with warranty coverage down the road if the transmission or differential has problems?

 

not a significant tire change to cause a drastic impact on speedo
really won't effect much, many on here are running way bigger with no issues at all.

Warranty on the other hand well...all depends how much of a piece of shit the dealer wants to be. If they really wanted to if something came up with the diff or trans they could try and turn it around and say its because of the added mass of the tires.
Your tires only being marginally larger I can't see them ever blaming them though. For something to void warranty they have to prove that, that change caused the problem/damage. That being the case most dealers are generally pretty good when it comes to warranty since at the end of the day, dealer just needs to perform the work and then file the claim with corporate and they get paid. I know some dealers love filing warranty work just to make money. Same time some dealers are cunts and will pick anything they can to not do work under warranty. So really it all comes down to what dealer you go to.

But really you going with 265 70 is nothing compared to the people running 285s here

 

Speedo will be off by around 2mph according to the calculator. I doubt most dealers would even notice the tires/sizes. I think the Pro is running 265/70.

 

Pro runs stock size.

I've never seen any issues with warranty over one tire size. Almost every manufacturer almost encourages it.

I run the same size with no issues. Go for it!

 

I checked with my dealer before moving up and they said no problem.

 

I've seen lots of dealerships that have larger tires already on models. You're fine. Have fun!!

 

I'd call the dealership to ask and make sure. If something happens and they blame it on the tires which are only one size bigger there's a problem on their end and they just don't want to do warranty work. If the truck can't handle running tires that are slightly larger and heavier without breaking that's a serious design flaw with the vehicle and that's pretty sad.

I guarantee you'll be fine OP. I've run big tires on a bunch of Toyotas with zero issues resulting from them.

 

Appreciate all the comments. Helpful in making decisions. Thanks a lot.

 

Speedometer accuracy is probably +/-5% from actual speed over ground anyway, the upsize might actually improve your accuracy.

 

as far as warranty goes, sure, if they dealer is a dick wad.

most dealers put lifts and tires on for an outrageous price anyway