Recommended to put KO2 on my spare?

I'm wondering if it makes sense to get a KO2 to put on my spare tire in case of a flat? I'm not sure what the tire is on my full spare but guessing a Dueler. I'm going to be offroading in Baja for 10 days and am getting concerned. Any recommendations? Would this be overkill?

 

Me personally prefer to have 5 matching tires.

But, TRD Pro only come with 4 All Terrain tires. So spare tire is not a matching tire. So may be its not too bad.

 

I'd prefer a matching spare as well. It's probably not going to be an issue.

 

I’d worry more about the load range being the same. If you have p rated ATs I think the factory spare is fine. If I change to C or E tires I like a matching tire load at least. I’ve bought 1 used tire from Discount for the spare before.

 

Very interested how load index impact. I thought only different circumference will impact the differential. Am I wrong?

 

The circumference impacts awd more so than other trims. My concern is that if you need the load capacity or toughness of an LT tire, now the spare is the weak point.
For a normal P rated, you’re mainly sacrificing the improved traction.

 

Trd Pro is not necessarily the pinnacle of off road readiness, lol.

All Wranglers, Broncos, Raptors, Power Wagons etc come with matching spares, so....

For mall crawling I think it's fine, for a long trip heading to potentially remote destinations, I'd want a matching spare. I'd probably even try to carry a second spare. Just my .02.

 

Check the date code on your spare. I replaced my SL AS Dueller that was 8 years old. I chose a stock size XL AT that matches my other 4 tires in case I ruin a tire. Once home get another AT tire to match.

 

I'm not hardcore or anything so a spare only matching in spec (or acceptable for the 4Runner application) is good enough for me. (assuming it isn't too old, bald, etc.)

If you expect to tackle a lot of rocks I'd get a similar style or matching A/T. I personally grabbed a second all-season spare for extra margin of error.

 

For 10 days in baja no it’s not overkill. Also, it’s not overkill to have two spare tires, an air compressor, and a tire repair kit either. Because when it rains, it pours. Depending on the trip/circumstances, it could definitely be a situation where two is one, and one is none.

I was camping in Colorado last summer about 2 hours up the mountains from Ridgway. That town was the closest place that could service a tire. From my campsite, it was a half hour on a trail made up of big chunks of chopped/jagged granite till you got to normal gravel roads. Right before sunset a guy showed up to the next campsite over with a flat tire (he had K02 load C). He changed to the factory spare that evening before he set up his camp. Next morning he stopped by asking if I had any cell service…another of his K02 had gone flat. All I could offer is put air in his flat tire once he was nearly ready to leave, and hope the leak was slow enough he could make it into town.

Basically it all depends on how close you are to help and what the risks are if you are stuck/alone.

 

If you have an OEM spare and are running larger tires than OEM, you have to. Otherwise the spare will rotate at a different speed than the larger tires which COULD damage the axle.

 

If our differentials were that sensitive, nobody would be turning left or right without a trip to the mechanic.

The difference in revolutions per mile between the most common tire size swap (265 to 285/70/17) is like 4%. You could have a difference in right to left tire rotations on equal tires of 4% easily on a trip to Costco.

 

Baja? I’d bring along a matching spare and something like this:
https://www.amazon.com/s?k=arb+tire...1783bc7396eb7cd91b&ref=pd_sl_126tm0zhwx_e_p68

 

Get 5 of the same n be done
All 5 won’t even be exactly the same if you got 5 KO2s
No worries then for the most part
Baja or not, make it better for rotation less your on the team of not adding spare to mix due to mileage/age or whatever
Plus you can get flats anywhere, not just the desert
Consider beer…12oz can, 12oz bottle, both beer, definitely different in multiple ways

Anways, regardless of what anyone tells you, even a rocket scientist, if you need to put that spare on at any point, your gonna be thinking bout it…just cause you already asked

I dunno

 

To me only makes sense if you're doing a 5 tire rotation with matching wheels. Otherwise what's the point?

 

Okay, that is fair. I stand corrected. You just taught me something

 

Wouldn’t it create a problem with the transfer case if it was in 4wd?

If I had to put on a different size spare, it would go on the front and I wouldn’t drive in 4wd until I could get it replaced. I guess it wouldn’t be a big deal if you this was on loose surfaces, but better safe than sorry and keep it disengaged unless you know you were going to need it for an obstacle.

 

That is a good point. I think just like with equal tire sizes, on a slipping surface the surface would allow the 4wd system to relieve itself before binding with unequal tire sizes.

There would be one stark difference for sure however. Driving in a straight line on pavement in 4wd won't hurt a thing. With unequal tire sizes, the second you hit pavement the system would start binding.

Anecdotally I'm still not sure how long it would take to cause catastrophic damage. Shoot most differentials can't spin... differntially? to not drag tire in a parking garage. If that doesn't hurt it, I can't imagine a temporary tire size difference would either.

 

Get roughly the same diameter tire. Done.
Sounds like youll be out in the sand. What lift do you have to raise the rig?

 

I still have my Dueler as my spair. Just needs to get me someplace where i can get a new main tire and it's 10x better than a doughnut. I have off-roded with the Duler too and it's not that terrible.

But if i was doing a 10 day Baja adventure i would be contemplating the same.