Changing to bigger tires, should we also change the spare?

[mcgaskins]

Two sets on the local Denver CL, I'd take a spare spare if you want to split a set.

Just sent you and @TonyP a PM.

 

[Tremek]

Looks like someone else is selling 3 singles (no affiliation): 2013 Toyota Tundra TRD wheels

$200/each is a good deal on a single, especially if you can avoid shipping.

 

[Yossarian]

Looks like someone else is selling 3 singles (no affiliation): 2013 Toyota Tundra TRD wheels

$200/each is a good deal on a single, especially if you can avoid shipping.

Bought them all today, $375 for three.

 

[Tremek]

Good haggling!

 

[Yossarian]

Good haggling!

He wanted them gone. Splitting the set with 2 other forum members.

 

[Tremek]

That's awesome, love to see that considering how difficult these wheels can be to find. Glad it worked out!

 

[mudtracker]

Thought I jump on this old thread to see if anyone could say what would actually happen by driving on one tire ~1" smaller diameter (than the other three) mounted in the front driver side for about 16 miles.

I suspect it should be fine but what damage could have been sustained realistically? Burned up fluid?

I recently put on new tires at discount tire and they inadvertently put on one smaller tire doh! I didn't realize their error until this afternoon, at which point i've driven about 16miles.

Thanks

 

[gaijin]

I recently put on new tires at discount tire and they inadvertently put on one smaller tire doh!

And I'm sure Discount has all the tires at the wrong pressure, too

 

[Markuson]

And I'm sure Discount has all the tires at the wrong pressure, too

My Discount Tire place would put whatever is on the driver door label...whether stock tires or 37” muds.

 

[KLF]

One of those other good reasons is exercising the spare tire hoist mechanism. With a 5 tire rotation done the same time as oil changes etc, the hoist gets used and lubricated.

Ever try to use a hoist that hasn't been touched in years? No Bueno.

It's worth repeating this post, very good point. Yeah that rear hoist is a pain in the butt, but I always do a 5-tire rotation at every oil change. A few years ago I stopped on the side of the road to help a woman with a flat tire, she was driving an older Nissan pickup, and I don't think the spare had ever been down. The hoist was rusted solid, we couldn't get it to lower. Had to get a tow.

 

[G-Cat]

I wondered aloud once, and then @LandCruiserPhil followed-through in practice:

Consider an under-bed spare that is the same diameter but as skinny as you can buy...on a skinny wheel...with a spare tire hoist mod.

This is for the minimalist wheeler that doesn’t want a 5-tire rotation or a rear-mounted spare but does want as much clearance under the rear as possible.

 

[KLF]

As much as I hate them, I wonder if anybody makes a donut temp spare in larger diameter to match?

 

[LandCruiserPhil]

As much as I hate them, I wonder if anybody makes a donut temp spare in larger diameter to match?

Not a donut but I went with a 7.00x17 on a ~5" split rim off a HZJ79 I believe. It's very heavy but narrow and tall. Because of how high up it is I dont think it would be possible to hit it without other damage first

 

[Fishinsea]

Unless going 34"+ which won't fit... There's no point in not replacing the spare, if only to save a few hundred bucks?

The spare mounting area will take up to a 33.5" spare no problemo. It even takes my 305 width tire just fine.

If we were talking a mini-ute or soft-roader SUV, it would make sense to compromise on a spare. But since this is my adventure vehicle, to go off the beaten path, and tow my large camper, there's no way I'd consider anything but a full size spare.

That said, running a mismatched (height) spare is all about not overheating the diffs. The more height disparity, the more spinning (heat) the diffs will see to compensate. Minimal differences won't create any significant issues. 33" vs 31.5"...won't see me putting myself in that situation.

Look at it this way - $250 for good insurance that no vacation will be ruined by a flat. Or have a small problem turn into a much more expensive one.

This is just the thread I have been looking for.
I have a 2018 LC200 and currently have 295/65/18 tires which are right at 33 inches

I did not replace my spare yet because I was worried about the 33 inch tire fitting in the soare location

Just trying to confirm the spare tire location will accommodate a 33 inch tire

Thank you all in advance

 

[TeCKis300]

This is just the thread I have been looking for.
I have a 2018 LC200 and currently have 295/65/18 tires which are right at 33 inches

I did not replace my spare yet because I was worried about the 33 inch tire fitting in the soare location

Just trying to confirm the spare tire location will accommodate a 33 inch tire

Thank you all in advance

It's been since confirmed that a full 34" spec measurement tire will fit. That's a huge tire to take in the rear

I've been debating 35x12.5s. Which typically spec out to 34.6".

As I don't have a rear bumper with swing out tire mount, I may need to compromise with a mismatched spare that's as close in diameter as possible. Like a LT295/60R20 (33.9"). That's a 2% difference in diameter which the diffs should tolerate without a problem.

 

[M1911]

If I change to bigger diameter tires
should I also change the spare to a bigger one?

In an event of a tire flat, will the stock original spare tire work? or will the drivetrain be affected? since 2017 LC 200 is full time 4 wheel drive.

for example during a flat:
3 tires are aftermarket 33'' and 1 stock size spare tire 285/65/18 which is around 31.5''. will that have any problems?

Yes, change your spare. 285-65-18 fits under the truck.

 

[CoolPrius]

I replaced 4 stock tires with 285/55/20's Geolanders. I was happy as a clam for months. Then remembered about tire number 5.

So I saved up my pennies and replaced the spare with a 285/55/20 Geolander. I sleep well now.

 

[Bryanmc]

I assume a 275/60/20 KO2 fits underneath?

 

[TeCKis300]

I assume a 275/60/20 KO2 fits underneath?

Searching google for "KO2 275/60/20 diameter" shows it's 32.9" spec diameter. Good to go.

 

[KLF]

Not to be the naysayer, but at some point I have to be concerned about hanging all that weight of an oversized tire from that winch. Imagine the carnage if you were zooming down the highway and hit a big bump, and the chain snaps. I have seen them break, as they get rusty.

I had a 34" tire jammed under the back of my mini-truck, but I kept a backup ratchet strap under it, hooked to the frame on both sides.