1st Of All, How Big Is A 305 Tire In Inches?

2nd, Will That Tire Fit On A Stock 2005 Fx4?

Thanks For Info

 

First, Welcome to the site.
The "305" is the width of the tire in mm. The 2nd # is the height, which is a % of the 305. So basically the 305/65/18 BFG AT KO is a 33.7"x12x18
For the most part the tire will not fit on a stock FX4. You have the best chance to fit with the factory wheel, but you are still probably going to rub while turning. It'll fit fine with a 2" Autospring leveling kit.

 

A little over 33" give or take a little depending on brand. You will probably want a leveling kit.

 

I think those tires may require a 8.5 min. wheel width, but some member's are running them on stock wheels. Good choice of tires if you can get 'em and yes the truck should be leveled. I wish that size was out a couple of year's ago!

 

Just got bfg 305 65 18 on my stocker fx4 rims. Also have leveling kit. Check them out in my gallery.

 

Damn, those look awesome!! Best pics I've seen of the 305's to date.
What leveling kit do you have?

 

Thanks For Responding To The Question Of 305's.

I Dig The Rims You Have On Your Truck. Can U Give Me Some Info On Those Wheels? Like, Name Of Wheel And Whether They Are Alloys Or Chrome.

Awesome Rig You Have There, By The Way.

 

I Am Glad To Hear And See That The Tires I Am Wanting Will Fit My Truck. Will I Be Able To Put Mud Guards On Since The Tires Look To Be So Close To The Fenders? Your Pictures Look Like That I Will Have Problems With The Guards.

 

I Want To Put On Mudguards On My Truck After The Wheels Are Installed. Will They Fit Or Better Yet, Will They Interfere W/ The Tire When Mud Is Caked On? I Will Put A Leveling Kit On As Well So As To Make The Fronts Work. I Want 18" Wheels And I Hope That This Will Work. I Greatly Appreciate Feedback. Thanks.

 

I went and took a look at the clearance for the mud guards and I think it would be close. I cranked on the steering and it looked to me the closest it would be is 1/2 to 1/4 inch. I am not sure how far the mud guard goes into the wheel well but square from the inside corner it is close. I hope this will help.

 

Well I have been set on getting a set of BFG AT KO's in the 305/65/18 size. But now I'm thinking I want to go as big as I can. Now I'm looking at the 325/65/18 for my stock FX4 18" wheel with my AS & AAL. Can I go this big on stock wheel and my setup? Wandell wanna chime in here?

 

You should be fine. A lot of members are running 35"s on stock wheels now with your setup. You might get a little rub on full crank though.

 

Well I really want to go as big as I can. How much rub are we talkin here? And where would it be rubbing?

 

I'm still looking at these 325/65/18 BFG all terrains. Anyone running this setup on stock wheels? I want to know HOW BAD and WHERE it will rub on my setup. TIA for any info.

 

ktexas, I thought the largest BFG AT in an 18" was a 305x65x18 this is about a 34" tire. The 325x65x18 is a 35" and will probably rub. I had 315x70x17's which are 34.5" and took them off due to rubbing. Coudn't even think about going offroad with them.