Sponsored

climbv1

TRD Pro
Member
First Name
Guanqun
Joined
Aug 25, 2026
Threads
1
Messages
8
Reaction score
9
Location
CA
Vehicle(s)
4runner trd pro
For anyone wondering if a 285/70R18 KO3 (E-Load, ~33.6") fits in the factory under-bed spare location: The good news is: Yes, it fits without modifications, but it is really tight... No need to modify the bracket or anything, but you have to intentionally push the tire back toward the hitch while cranking the chain to leave about 1/5" of distance to the panhard rod.

Concerns: That 1/5" distance is close enough to risk rubbing when the panhard rod moves during off-roading. Also, because the spare tire hangs significantly lower than stock (due to increased width), it will completely ruin your departure angle and will likely strike rocks on technical trails.

I will go with this as a temp solution but eventually I think I will have to install a tire carrier.

2025 2026 4runner 6th gen KO3 E load 285/70R18 Spare Tire Fit Test IMG_0212


2025 2026 4runner 6th gen KO3 E load 285/70R18 Spare Tire Fit Test IMG_0223
Sponsored

 

sliver

Trailhunter
Well-known member
First Name
Guy
Joined
May 4, 2025
Threads
2
Messages
135
Reaction score
95
Location
Atlanta GA
Vehicle(s)
1
Perfect! I was going to go with that size, but was afraid that might be a problem, since I have an on board compressor, I was thinking of partially deflating it to help, I might not even to go that route, that's great!
 

Moby

TRD Off-Road Premium
Well-known member
First Name
Moby
Joined
Sep 3, 2025
Threads
8
Messages
55
Reaction score
7
Location
NJ
Vehicle(s)
TRD OR Premium
Thanks for sharing. It’s helpful
 

jcash25

TRD Off-Road Premium
Well-known member
First Name
jason
Joined
Jul 4, 2025
Threads
0
Messages
97
Reaction score
64
Location
Houston
Vehicle(s)
2025 TRDO Premium
For anyone wondering if a 285/70R18 KO3 (E-Load, ~33.6") fits in the factory under-bed spare location: The good news is: Yes, it fits without modifications, but it is really tight... No need to modify the bracket or anything, but you have to intentionally push the tire back toward the hitch while cranking the chain to leave about 1/5" of distance to the panhard rod.

Concerns: That 1/5" distance is close enough to risk rubbing when the panhard rod moves during off-roading. Also, because the spare tire hangs significantly lower than stock (due to increased width), it will completely ruin your departure angle and will likely strike rocks on technical trails.

I will go with this as a temp solution but eventually I think I will have to install a tire carrier.

IMG_0212.webp


IMG_0223.webp
Damn... is it the angle in rear is looooow. i know KO3s are heavy but damn
 

IRFAN0922

SR5
Active member
First Name
irfan
Joined
Jul 16, 2026
Threads
5
Messages
42
Reaction score
30
Location
22033
Vehicle(s)
2026 Toyota 4Runner SR5
My experience with BFGoodrich has been bad. In my opinion, these are some of the most popular tires with some of the poorest on-road performance. After about 15,000 miles, they also become noticeably louder.
 

jcash25

TRD Off-Road Premium
Well-known member
First Name
jason
Joined
Jul 4, 2025
Threads
0
Messages
97
Reaction score
64
Location
Houston
Vehicle(s)
2025 TRDO Premium
My experience with BFGoodrich has been bad. In my opinion, these are some of the most popular tires with some of the poorest on-road performance. After about 15,000 miles, they also become noticeably louder.
your suppose to rotate your tires....
 
OP
OP
climbv1

climbv1

TRD Pro
Member
First Name
Guanqun
Joined
Aug 25, 2026
Threads
1
Messages
8
Reaction score
9
Location
CA
Vehicle(s)
4runner trd pro
Damn... is it the angle in rear is looooow. i know KO3s are heavy but damn
yea, this might be ok for some mild overlanding, but definitely not ok for rock crawling.
 
OP
OP
climbv1

climbv1

TRD Pro
Member
First Name
Guanqun
Joined
Aug 25, 2026
Threads
1
Messages
8
Reaction score
9
Location
CA
Vehicle(s)
4runner trd pro
My experience with BFGoodrich has been bad. In my opinion, these are some of the most popular tires with some of the poorest on-road performance. After about 15,000 miles, they also become noticeably louder.
I really like the KO3s. They're very capable off-road, grippy and strong. As for noise, I honestly can't tell much difference from my stock Toyo Open Country ATIIIs. And the white letters look great on the 4runner.
 

jcash25

TRD Off-Road Premium
Well-known member
First Name
jason
Joined
Jul 4, 2025
Threads
0
Messages
97
Reaction score
64
Location
Houston
Vehicle(s)
2025 TRDO Premium
I really like the KO3s. They're very capable off-road, grippy and strong. As for noise, I honestly can't tell much difference from my stock Toyo Open Country ATIIIs. And the white letters look great on the 4runner.
I was going to say i dont know why they added a layer of white rubber on the new tires... i havent had a new set kO3s but i love my old tires...I had them on a 3/4 4x4 dodge diesel so noise wasnt even thought of. Id NEVER put them on a 4runner way too heavy rigid for a light 4runner.
Unless you need that 10ply bc you shred the sidewalls on rock.
I also saw this and i probably wont be getting BFGs anytime soon...
 

RunnerRocks

TRD Off-Road Premium
Well-known member
First Name
RedDog
Joined
Dec 15, 2025
Threads
7
Messages
406
Reaction score
271
Location
Nature
Vehicle(s)
2026 TRD ORP (non-hybrid)
For anyone wondering if a 285/70R18 KO3 (E-Load, ~33.6") fits in the factory under-bed spare location: The good news is: Yes, it fits without modifications, but it is really tight... No need to modify the bracket or anything, but you have to intentionally push the tire back toward the hitch while cranking the chain to leave about 1/5" of distance to the panhard rod.

Concerns: That 1/5" distance is close enough to risk rubbing when the panhard rod moves during off-roading. Also, because the spare tire hangs significantly lower than stock (due to increased width), it will completely ruin your departure angle and will likely strike rocks on technical trails.

I will go with this as a temp solution but eventually I think I will have to install a tire carrier.

IMG_0223.webp
Are you sure that spare is fully seated ?

Here's my Toyo OC AT3 LT275 /70 R18 125S E1 spare.

2025 2026 4runner 6th gen KO3 E load 285/70R18 Spare Tire Fit Test Toyo1


2025 2026 4runner 6th gen KO3 E load 285/70R18 Spare Tire Fit Test Toyo2
 
OP
OP
climbv1

climbv1

TRD Pro
Member
First Name
Guanqun
Joined
Aug 25, 2026
Threads
1
Messages
8
Reaction score
9
Location
CA
Vehicle(s)
4runner trd pro
Are you sure that spare is fully seated ?

Here's my Toyo OC AT3 LT275 /70 R18 125S E1 spare.

Toyo1.webp


Toyo2.webp
It was fully seated. I think it's just my tire is slightly bigger.
 
OP
OP
climbv1

climbv1

TRD Pro
Member
First Name
Guanqun
Joined
Aug 25, 2026
Threads
1
Messages
8
Reaction score
9
Location
CA
Vehicle(s)
4runner trd pro
I was going to say i dont know why they added a layer of white rubber on the new tires... i havent had a new set kO3s but i love my old tires...I had them on a 3/4 4x4 dodge diesel so noise wasnt even thought of. Id NEVER put them on a 4runner way too heavy rigid for a light 4runner.
Unless you need that 10ply bc you shred the sidewalls on rock.
I also saw this and i probably wont be getting BFGs anytime soon...
your money your choice. :)
 

jcash25

TRD Off-Road Premium
Well-known member
First Name
jason
Joined
Jul 4, 2025
Threads
0
Messages
97
Reaction score
64
Location
Houston
Vehicle(s)
2025 TRDO Premium
your money your choice. :)
no doubt.. ! was just showing what will happen when you scrape that sidewall, you will be running with a white stripe on your sidewall.
Sponsored

 
 







Top