Largest Functional Tire Without Mods

[Baron von Teuchter]

I’ve had a few slow punctures in my stock BFG AT’s and am vaguely considering switching to MT’s, I have used Toyo Open Country MT on some other vehicles and they’re great. They do a 285x70r17 which I think will fit fine with no lift.

BFG MT I’ve found to be really noisy in the past but that was the old pattern and they seem to have changed quite a bit (and they were bloody expensive). Any other options?

285x75R17 is 33.8” by my sums and it seems that some people have run this size without any rubbing.

 

[parb]

Ooof, 295/70/18 is a big tire for stock suspension. In normal cruising around town you may be ok depending on the offset and width of the wheel; but flexed off road it almost certainly will rub

I'm considering this size tire on 1.4" lift in the rear and 1.7" lift up front.
Do you think it would still rub? No special offset on the wheels, factory steelies

 

[anand]

I'm considering this size tire on 1.4" lift in the rear and 1.7" lift up front.
Do you think it would still rub? No special offset on the wheels, factory steelies

I think you should be fine with that set up with the lift, as it is narrower than a 35x12.5 (with very similar overall diameter)

 

[parb]

I hear that the 35x12.5 rubs with this lift and I wanted to avoid that.

 

[copesetic]

New guy here, just got the grenadier a couple weeks ago added the K03 285 7517s on the stock steel wheels no rubbing however I did have to put the spacers on the spare to get the small door to clear, otherwise I couldn’t open it.

 

[abbeyroad]

Has anyone run 295/70/17 Toyo MTs, bone stock IG on steelies with zero rubbing and clears the rear doors no mods?

These are legit 33s.

TIA!

 

[Dlucky]

Has anyone run 295/70/17 Toyo MTs, bone stock IG on steelies with zero rubbing and clears the rear doors no mods?

These are legit 33s.

TIA!

View attachment 7904460

Running pizza cutters on mine. Still 33s. 255/80 17

 

[ziploc_adv]

1) Does the vehicle self correct for a larger tire size with regards to the speedometer reading or will I have to go to the dealer to adjust the software parameters?

LeTech offers a dongle to correct the speedometer (not sure what else, if anything) for the 285/75-17 size. Warner INEOS imports them.
LETECH tacho module for Grenadier

 

[anand]

LeTech offers a dongle to correct the speedometer (not sure what else, if anything) for the 285/75-17 size. Warner INEOS imports them.
LETECH tacho module for Grenadier

Over $1000USD for a tire size that makes the speedo ~1-2mph slow at highway speeds seems.... Not worth it

 

[abbeyroad]

I was waffling between 285/70s and 295/70s and opted to go for the girthier latter. I wanted no rubbing, no spare wheel spacer, no drama at stock height. I considered KM3s (got 37s on my Land Cruiser), Yokohama Geolander G003s and Wrangler Duratrac RTs. Settled on KO3s based on latest tire tech from BFG.

Rides firmer than the factory Bridgestones. Doesn't accelerate with same alacrity since 22 lbs heavier per corner (12 lbs OEM KO2s) and 1.6" taller, but B58 makes it a non-factor. Noise level similar. Tracks straight. Zero vibes with road force. Feels more sporting. Happy with my decision.

I'll go for wide 35s w/ lift once the aftermarket sorts out the front driveshaft issue.

This thread w/ pics was really helpful - gracias!

 

[Brad@SuperiorCO]

Hmmm Could you hear it rub or did you notice is on an inspection? I’m running the same tires and have hear them rub and I have certainly had it fully stuffed. That said, I have not looked to see if there are any rub marks.

I still maintain that it is the perfect size tire for this truck on stock suspension

I could hear it rub, only on the passenger side. It was seldom, and took me 6 weeks to figure it out. The inner wheel wells are flexible, maybe it was the hot weather.

 

[AngusMacG]

I was waffling between 285/70s and 295/70s and opted to go for the girthier latter. I wanted no rubbing, no spare wheel spacer, no drama at stock height. I considered KM3s (got 37s on my Land Cruiser), Yokohama Geolander G003s and Wrangler Duratrac RTs. Settled on KO3s based on latest tire tech from BFG.

Rides firmer than the factory Bridgestones. Doesn't accelerate with same alacrity since 22 lbs heavier per corner (12 lbs OEM KO2s) and 1.6" taller, but B58 makes it a non-factor. Noise level similar. Tracks straight. Zero vibes with road force. Feels more sporting. Happy with my decision.

I'll go for wide 35s w/ lift once the aftermarket sorts out the front driveshaft issue.

This thread w/ pics was really helpful - gracias!

View attachment 7905174

Be interested if your mileage changes much. I’m looking at getting a new set as my original wheels are getting to the end of life for wear. Was considering going pizza cutter but concerned that it would look weird. Not going to do a lift at any point but thinking I want to go with a more aggressive stance with the 295’s.

 

[Commodore]

I could hear it rub, only on the passenger side. It was seldom, and took me 6 weeks to figure it out. The inner wheel wells are flexible, maybe it was the hot weather.

Strangle, I have never heard it rub and had it fully flexed again last Friday. Wonder if your liner is sagging or miss installed

 

[C-Mack]

This will sound a bit strange but as the chassis and body come together on the production line they can sit askew slightly as there is considerable tolerance at the body chassis attachment points. I know this as when my vehicle was delivered I noticed the passenger side rear wheel appeared more sunken into the wheel well compared to the drivers side.

It took me a while to figure it out but I removed the two most rearward body mount bolts by the rear bumper and you could look up and see how the bolt holes on the body were not central to the body mount bushings. In other words, the back end of the body was sitting more pushed over toward the passenger side of the chassis which would put the inner fender and liner closer to the inside of the passenger tire because those components are attached to the body structure.

The fix was easy, I just loosened (not removed) the body bolts under the rockers (leaving the front two chassis mounts fully attached and torqued) and gently rocked the body on the chassis until the back end moved over a little. It took surprisingly little effort to move the body over but after a few pushes I was able to centralize the bolt holes in the mounts which evened everything side to side and re-torqued all the mounts.

Not advocating anyone else try and do this but just be aware each vehicle can be a little different in how it’s assembled and may explain why some rub differently from side to side with certain wheel/tire combinations.

 

[abbeyroad]

Be interested if your mileage changes much. I’m looking at getting a new set as my original wheels are getting to the end of life for wear. Was considering going pizza cutter but concerned that it would look weird. Not going to do a lift at any point but thinking I want to go with a more aggressive stance with the 295’s.

I won't be a good data point as I didn't track mpg with the stock Bridgestones. It definitely doesn't feel as light on its feet, but there's enough overhead in the B58 to make the pros outweigh the cons for my needs.

I'll never run pizza cutters on my 4x4s unless OEM. I just don't like the look at all. The 295 KO3s balanced perfectly and track straight at 90 mph with a fresh alignment. It feels more planted than the skinny, conservative Bridgestones which I actually really liked the look of as is to be quite honest.

I'm sorry I can't be of more value here, but I'll track my mpg during my 2 week long sojourn to the PNW should you so desire.

Cute dog!