Not much room for a larger spare tire under our trucks

[2TR-FE]

This is what I was thinking, that makes sense right?

It makes sense if you don’t go too big.

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[spenticus]

It makes sense if you don’t go too big.

I’m going to be running a 285/75-17

 

[2TR-FE]

I’m going to be running a 285/75-17

That’s about a 33. - with little to no psi, I think it should work. I doubt aired down 35’s would fit though

 

[sierraenvy]

My hope was to put a 275/70r17 which is around 32.2 diameter, in the spare location. Stock tire is around 31.7.

Any update on this? Was your thought to use the 275/70/17 as a spare for 285s on the truck?

 

[ABComa]

The diameter is one thing, it’s the width that becomes an issue if you’re planning to wheel at all it looks like. Pics from another site with a 285/70/17 hanging way too low for my liking anyway. The poster also removed it and will haul somewhere else.

 

[Kielly]

I'm pretty amazed they didn't include a full sized spare, what do folks with the full time 4wd do? I'd never run two different size tires on a drive axel, not even for 10kms

 

[JED]

That’s about a 33. - with little to no psi, I think it should work. I doubt aired down 35’s would fit though

34”

 

[Powhunter]

Any update on this? Was your thought to use the 275/70/17 as a spare for 285s on the truck?

No update yet. My wheels just arrived today, but am working another week before I can get the tires put on. My thought was to use the 275 as a spare with 285s the rest of the way around. However it’s looking like 275/70r17s are harder to come by, so I might end up with an E load 265/70r17 instead in the spare location.

 

[sierraenvy]

So based on some research and videos I've seen, I'm 90% certain the hybrids do in fact come with 265/70/18 spares underneath and they don't look awful with regards to tire width. Wouldn't this be a suitable spare for 285/70/17s. So now the question: is there something structurally different that allows these models to carry this larger spare?

 

[sierraenvy]

My plans are to keep the phony spare underneath as a weight for the truck.

I am running 265/70 R18, so for this year it will remain in the bed secured. If I need the full bed, it will have to come into the cab, rear passenger area. My 2016 SR access cab, I kept the full spare 265/75 R16 behind the passenger seat and it nestled in the foot well very nice.

Plans for my new TRD Sport will be either roof basket, so when I need the bed, I use one of my many ramps to slide it up on the roof basket and when done, bring it back down into the bed.

Other solution will be a new rear bumper with swing gate to mount the full 265/70 R18 like a 4runner or Jeep in back and match with a low profile front steel bumper.

It will all depend on how I like the look of the front and rear OEM plastic covered bumpers before I decide. Never have I had the spare mounted underneath less for weight. Corrosion is a big deal and I am not getting down there to drop the spare in a cold rainy or snowy day.

Some examples of past trucks.

My old 2010 SR5 bronze oxide... 265/75 R16 first image.

My old 2010 SR5 bronze oxide... 285/75 R16 second image.

My old 1985 2wd 4-speed manual... 32x10.5 R15 last image.

Since you have the setup, I'm pretty sure the hybrids come stock with 265/70/18s and all the pics/videos I've seen convince me they're equipped with true full size spares. Have you tried putting yours up there?

 

[frosty4x4]

Any updates on anyone running 285/75/17? I have a set of that size KO3s coming and hoping to stuff it under there aired down with the resonator delete turndown.

 

[Yoda_Tacoma]

Here’s what I got which I think is the absolute best size fitment imho.

Wheels: 17x8.5 —10 Volk Racing 05X
Tires: 295/70 Yokohama Geolandar MT

Spare wheels:

The spare will have to be slightly deflated to squeeze behind the hitch. When I say slightly it means it fits without the tire being deformed. Just deflated enough so that the tire isn’t ballooning from pressure.

Here’s pics of what a 295/70 is on a Taco:

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