Cold feet about larger tires...

I checked with my dealership about going from 265/70/16 to 265/75/16. This is basically the same as you are doing which is moving up one size. They said it would not affect warranty.

 

Sweet, I was going to talk to my dealer about it too. I was planning on just having them install them too just for peace of mind.

 

The way toyota has been so difficult with even fixing items under warranty I don't blame you one bit. Plus this thing is a dog and shifts all over the place as it is. One inch larger probably not too big of a deal but I wouldn't go any bigger. Also you may want to ask a trusted service advisor to play devils advocate for you. Opinions on a message board are worth what you pay for them...... not much right?

 

oh FFS go look at the tire calculator dude. They're 1 inch larger.

 

all you are doing is changing the diameter of the rim, the tire profile is different, total height and diameter are virtually unchanged...go online and use a tire calculator, much like this one.... click tire comparison and see what is....

you are good to go....

 

When you extend size of the rim the outter diameter of the tire changes proportionately. Tire math. So 1 inch size larger rim = 1 inch larger in outter diameter
265/70/16 = 265/65/17

 

I was planning on talking to my Service Advisor about it when I take my truck in Monday for the diff/driveline/rear end (whatever the hell is making it) noise. He is a great guy and hasn't given me any trouble with anything. So I will probably roll with what he says.

 

See here for proof

 

I went one size up with my KO2's on my '16 TRD Sport, C rated, and have no worries about warranty issues, etc. Would warn you though that adding the tires and a camper shell has SIGNIFICANTLY affected my fuel economy for the worse and have considered going back to a stock size tire and something more fuel efficient since most of driving is freeway/around town and not a ton of off-road. I'd consider that well before worrying about warranty concerns.

 

to solve the diameter problem, go to a 65 or 70 instead of a 75, or get a 255 instead of a 265...it ain't rocket science...play with the tire size calculator, it is what I did when I changed to a 17" alloy rim from my stock 15" alloys....my tire diameter and RPM (rotations per mile) are virtually the same with either setup...

 

EXACTLY why I likely won't be deviating from stock

 

I was also shocked that the camper shell decreased the mpg's even more. That one was a shocker.

 

oh for fucks sake I am a dumbass once again

nothing to see here

 

If I lose an MPG or two, I am cool with that. This would be the only modification I make that will cause any MPG changes. If I were planning on capping it too, I would probably reconsider.

 

With the tires, camper shell and the Transmission TSB I've lose about 4mpg!

 

Wow....I don't blame you for considering switching back at all! That is really substantial!

 

Yeah, and I don't drive like an a$$hole either.

 

This is true... My speedometer is perfect with 265/75/16 tires... 265/70/16 was stock. It's 1" larger...

Confirmed with a GPS, it's actually more accurate now than it was before.

 

FYI for the OP - the TRD Sport comes stock from the factory with 17" wheels ... I've got 10K on my tires same size as the OP .. looks, rides and runs like a charm!

 

What is your objective in the change? Is it the rims? Or the tires? You could swap over to 265/65R17 tires, then you don't have to worry about warranty and calibrations.