285/75R18...anyone running this size? (1 Viewer)

[mattds]

HI there, just curious to know if anyone else is running this size and if so what tire brand are they using, pressure, etc. Also what suspension set up they have.

I'm running them on a 2" spacer with stock spec alignment, I did a bmc and lots of trimming.

 

[r2m]

With all due respect, did you do a search yet?
There's a LOT of posts on tire sizes, both 17" and 18" wheels.
But to answer your question: You're talking about a 34.8" tire! If you want your rig to have full compression at lock-to-lock, my guess is that you will have a lot of rub.
I'm about at maximum tire size with 285/75R17 BFG M/T KO2's. These measure at 33.8" O.D. I have a 3" lift, UCA's, BMC, etc. and this size tire works, but I wouldn't go any larger on my rig.
Here's a tire calculator to help: Tire Size Calculator

 

[mattds]

Sorry I should have been clearer. I am currently running that size and just wanted some feedback on specifically what tires people are running and their thoughts.
I wheel regularly and through some trimming and a bmc and alignment I don't rub anywhere.

 

[r2m]

What tires are you running that are almost 35"? I have been under the assumption that my 33.8" was maxing out what could be used without turning it into a "mall cruiser".
So you can get full compression at lock-to-lock without rubbing??? Forward and backward?
I may be needing tires next year and am thinking of going with BFG A/T's instead of the M/T's this time around and if you're not having any rubbing issues, I may bump up the size a wee bit!

 

[mattds]

What tires are you running that are almost 35"? I have been under the assumption that my 33.8" was maxing out what could be used without turning it into a "mall cruiser".
So you can get full compression at lock-to-lock without rubbing??? Forward and backward?
I may be needing tires next year and am thinking of going with BFG A/T's instead of the M/T's this time around and if you're not having any rubbing issues, I may bump up the size a wee bit!

I'm running toyo ATII extremes in 285/75r18 on stock wheels with 1.5" spacers and get full truck and am at 3.5 degrees of caster. With 2-2.5" of lift. As you increase caster your lift seems to increase. The tire shows an outside diameter of 35".