I stand corrected— my 95 PU that has had no issues doing this 27 years doesn’t have all the computerized systems to make a mess of it.Don't do it. You'll freak out the Jeep if you use the spare.
The wheel speed sensors will constantly think the smaller tire is slipping and losing traction because its rotation speed will be slightly faster than the other tires. Then all sorts of unnecessary alarms and restrictions will kick in.
You're far better off getting the right sized spare and doing a 5 tire rotation.
Yup, modern technology and jerry rigging are not friends.I stand corrected— my 95 PU that has had no issues doing this 27 years doesn’t have all the computerized systems to make a mess of it.
Wouldn’t this be just like rotating 5 tires and then keeping the least worn as the spare? You would have to buy 4 but each tire should last longer anyway and offset the cost by not having to replace as often.On my other Jeeps I have only rotated 4 and then when time for the first replacement bought the exact same tire and only bought 3 and used the "original" spare as the 4th tire and put the best of the worn tires on as the spare. Come to think of it, in 40 years of driving, I have never used a spare tire to replace a flat....(knock on wood)
On my other Jeeps I have only rotated 4 and then when time for the first replacement bought the exact same tire and only bought 3 and used the "original" spare as the 4th tire and put the best of the worn tires on as the spare. Come to think of it, in 40 years of driving, I have never used a spare tire to replace a flat....(knock on wood)
I've run a 31" spare on the front with 37's all around. Like others say, put it on the front then in 2 Hi no differential to worry about. I have 4 full size spares at home.Don't do it. You'll freak out the Jeep if you use the spare.
The wheel speed sensors will constantly think the smaller tire is slipping and losing traction because its rotation speed will be slightly faster than the other tires. Then all sorts of unnecessary alarms and restrictions will kick in.
You're far better off getting the right sized spare and doing a 5 tire rotation.
LOLgreat way to destroy your differential running 2 different size tires on the same axle, not to mention unsafe
Ha, I need to get a donut for my Leaf. Leaf's and many new cars don't come with a spare, not even a donut. For sure you need a real tire where you were at. I don't take the leaf off road much.Hopefully you will never have to replace a flat, but you never know when you might. On my first Jeep, I had a tire shred on a back road in the middle of Montana, miles from the closest paved road. I was so glad I replaced the donut with a full-size spare.
Every time I see this question asked, I can't help but envision spiking the ball at the 5 yard line. I'll never see the justification in doing so. All it takes is a little more effort to erase any wiggle room to debate.Just save up till you can afford one more tire. The difference of 1" isn't the problem, it is the revolutions per mile that tire will need to achieve to keep up with the other three. This increased revolution will create excessive heat. There are also the numerous electronics that will have to compensate (ABS, etc) for the fact that one tire is moving considerably fast than all three other tires.
For instance the 255 tire is rotating 629 times per mile, where as the 275 is covering the same distance with 609 rotations.
If you needed it in an emergency pinch where you weren't going to go a considerable distance or speed, you're probably fine. But if you need it for a long haul, I wound't personally do it.
No issue if you put it on the front right and stay out of 4wd. With the fad on that side, from a mechanical stand point it won't matter one bit as it's only connected to the outer axle shaft and won't even turn the spider gears.If one upgraded their 255/70/18 Sport Altitude tires to 275/70/18 and left the 255 on as the spare for emergency use only, would there be an issue with this setup as long as 4WD wasn't used? The difference when the tires are new would be 1 inch, and that difference would continue to shrink as the tires on the ground aged.
Especially since you can buy the cheapest used tire with only a bit of tread left. It's only for emergency use.Every time I see this question asked, I can't help but envision spiking the ball at the 5 yard line. I'll never see the justification in doing so. All it takes is a little more effort to erase any wiggle room to debate.
The only difference between 5 and 4 tire rotations is how much is spent on one given occasion. Over time and multiple sets of tires, the total cost evens out.Especially since you can buy the cheapest used tire with only a bit of tread left. It's only for emergency use.