My brother (a member here: "RLTW") is deployed for his third deployment in Astan and he's in need of some new tires for his FX4. I'm thinking of getting him some new shoes for his truck while he's gone.




What's the tallest tire I can fit on his stock 18" rims FX4 with NO leveling kit?



Thanks.

 

The 305/65-18 (34x12.50) BFG AT KO would be a great choice.

 

Not to second guess your infinite tire wisdom Wandell, but a 12.5" tire on a stock rim? How wide are the stock 18" wheels?


And 34's will fit on an FX4 without a leveling kit or anything else?


I'm running 35's with a 4" Rancho lift kit and they seemed like it was a tight fit.



Carl

 

I have the 305/65/18 BFG's on my stock rims and no problems. I do however have a 2" leveling kit.

-Jeff

 

You asked for the largest size without rubbng. And yes, a 12.50 inch wide tire is pushing the limit on the OEM 7.5 inch wide wheels as most tire manufacturers recommend at least an 8 inch wide wheel. But many, many members here and FTW have run that size without any problems. And yes, they would look better with a leveling kit.

 

i went the tallest 17" and it rides and looks great. Not such a HUGE gap between the tire and wheel well.

 

The problem is that 34" is doable, but nobody makes a tire that will fit the OE skinny rim "by the numbers". Personally, I'd stay in the 33" range myself.

 

And personally, I think 33's look best on a leveled truck.

 

Thanks for the suggestions guys. Looks like a 33" tire it is.


The reason he wants to keep the ride height of his truck stock is because we all know the front end on these are notorious for taking a **** with the ball joints. He is looking for some good, reliable, longevity use of the truck and doesn't want to be playing around with adding a leveling kit to the front which might jeopardize the life of those crappy ball joints. Luckily I got all four of mine replaced before my warranty ran out...$1200 job from the Stealership.


His FX4 vs. My Rancho 4"

 

275/70/18 for a 33" or 295/70/18 for a 34". I put the 295 Nitto Terras on my '05 with a 2" level. I think they'd fit with a level, but it would be tight.

 

Thanks again guys for the help.


But once again, we aren't going LEVELED or LIFTED. It's going to stay at stock height on the oem rims. That's why I asked what's the tallest tire we can run on stock 18" rims at stock ride height. It looks like we'll be able to get away with a 33" A/T. I run BFG AT's as my winter tires and seem to work well in the snow.


I like to use this "Tire Size Calculator" to help out with metric size conversions: http://www.dakota-truck.net/TIRECALC/tirecalc.html

 

you should be able to get a 33 on a stock rim with no level. I have exactly measure 32.2 inch tires and could easily get a 33 on there without a level.

 

Go with a 285x65x18 BFG AT on the OEM wheels at stock height and you should have no problem's.

 

I have the 285/65/18 on my fx4 with no level...thats a pic of it in my sig...I have a couple other pics too if you like.

 

If you would post them up to give Carl a good look. Thank's!