Spare Tire Wrong Size

[CaptainMal]

New Ranger a few days ago.

Well went to check the spare tire and noticed a couple things. Biggest issue was size. The spare is a Thailand gumbo 16". The truck has 17" Goodyear Wrangler's.

Called parts at the dealer. The response was to go buy a proper rim and tire. Did leave a message for the salesman. No answer yet. Is this common with Ford?

My truck experience started with a GM back in the 1970's. Had a Ford gasser in the 80's and then GM and Ram big diesels until a few days ago. Got weak and sometimes sick now in my 80's and decided to go small. Never before have I seen a spare tire of a different size.

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[Jason B]

Wheel sizes are different, overall tire size is the same.
235/80 16 is 30.8" diameter
255/70 17 is 31" diameter.
You are good.

Spares are meant to be temporary, anyway.

 

[purdyd]

Spare is same diameter, and not balanced.

I thought it odd too.

the lariat has a 17” rim for the spare with 18” rims stock

i bought another rim and tire and run a 5 tire rotation.

 

[CaptainMal]

Unde5stand a spare is mostly for emergencies. Just going to be odd to have a different circumference wheel in one position in an emergency until that can be remedied. As stated, probably going to waste more money and buy a proper wheel and tire for that spare.

Shame you would have to do that.

 

[stemplar]

Unde5stand a spare is mostly for emergencies. Just going to be odd to have a different circumference wheel in one position in an emergency until that can be remedied. As stated, probably going to waste more money and buy a proper wheel and tire for that spare.

Shame you would have to do that.

While the spare rim and tire are different sizes than your 4 primary wheels, the spare has the same circumference as the stock tires (as @purdyd pointed out, they have the tires have same diameter (to clarify, it’s the outer diameter we’re talking about here)).

 

[got3fords]

Unde5stand a spare is mostly for emergencies. Just going to be odd to have a different circumference wheel in one position in an emergency until that can be remedied. As stated, probably going to waste more money and buy a proper wheel and tire for that spare.

Shame you would have to do that.

Like already said, the spare is the SAME DIAMETER! Why sweat it? It won't hurt a thing to use it in an emergency.

 

[Loudpa]

Like already said, the spare is the SAME DIAMETER! Why sweat it? It won't hurt a thing to use it in an emergency.

Exactly its fine for a spare. If however you'd want to do a 5 tire rotation then an exact tire and rim would be in order.

 

[got3fords]

Exactly its fine for a spare. If however you'd want to do a 5 tire rotation then an exact tire and rim would be in order.

Sure thing, with a small upfront investment, what around $500, tire and rim? But I don't think that is what is bothering the OP.

 

[Sharpie223]

If it was strictly for on-road use, I'd just keep the factory spare as is. But with plans to be way off the pavement, and the fact that I got a set of 5 bronco take-offs, I'm going to upgrade to a full sized spare.

Again, if you don't plan to leave the pavement or well maintained dirt/gravel, I'd just keep the factory spare.

 

[Jason B]

As said many times, it's the same diameter.
It's not like those compact spares you see on cars that are a lot smaller and narrower that the road tires. Yet people still drive 70 MPH for a week with them on.

 

[Blue Wolf]

I noted this with my 2024 XLT. I wanted to use my spare tire to replace a tire that had been damaged, but found it was not the same. Very misleading by Ford as "Full Size Spare Tire/Wheel" in their documentation sounded to me like it was the same as the other tire and wheels. When your miles away from home, I would like to have the same tire to run on or use as a replacement.

 

[TGG!]

As said many times, it's the same diameter.
It's not like those compact spares you see on cars that are a lot smaller and narrower that the road tires. Yet people still drive 70 MPH for a week with them on.

My neighbor has been driving around with a donut on the front driver side of his Civic Type R for about 2month now.

 

[HighDesertRanger]

Wheel sizes are different, overall tire size is the same.
235/80 16 is 30.8" diameter
255/70 17 is 31" diameter.
You are good.

Spares are meant to be temporary, anyway.

It’s perfectly fine.

 

[got3fords]

My neighbor has been driving around with a donut on the front driver side of his Civic Type R for about 2month now.

I would never put that stupid donut spare on the front. I would move a rear one up and put the spare on the rear.

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