Replacing Spare Tire

Did a search but did not find answer:

Question, considering going from stock 265/70r16 tires to 265/75r16 tires on my 2015 TRD Off Road 4x4 Double Cab Tacoma.

If I do would I need to replace my 265/70r16 spare or could it be used in a pinch with the 75 series tires?

 

I wouldn't......save your $$ for fuel

 

your good as long as you don't put it on and leave it on for an extended amount of time

 

Short term use of the spare, you'd be okay. Just keep it out of 4wd.

 

Thanks guys. I appreciate the help.

 

Same as running a donut on any vehicle. Not a problem for the short term.

 

I'd stick it on the front if possible

 

It will put less stress on the components if the 75 is worn down close to the bars compared to when the 75 is brand new. I’m guessing your spare has full tread.

 

You're fine. Next set of tires swap the best of the 265/75/16s that come off onto your spare.

 

Yes, my spare is a new 265/70r16 BFG Rugged Trail which came as original equipment on the truck.

The other tires have 44,000 miles on them but still have a good 10-15 thousand miles left.

 

Keep the spare you have. When you buy tires next time keep the best 265/75/16 as your new spare. The tire store may well give you a few dollars credit for the unused spare.

 

Aren't most donuts the same diameter, just thinner?

 

Not on most cars, especially those that the spare is stored in the trunk for space saving purposes. Even our spare tire is limited to the space it occupies under the bed but it's not considered a donut.

 

Well.... wife's car, AND her previous car, both have/had full diameter donuts... so...?

 

Really depends on the make model of the cars. My older hondas (camry, accord) had donuts that I replaced with full size spares and my wife's Buick Enclave also have a donut. As for Tacomas, most here upgrade their wheel/tire setup which makes our factory full size spare smaller in diameter.

 

Does the same apply in this similar scenario? We have 265/65/17 tires currently. Upgrading to 265/70/17 and hoping to save $$$ by not replacing the spare. We should be okay for short term use if we keep/use the 265/65/17 spare, correct?

 

@huruta, you're fine not replacing the spare right away.