04 lariat with 3" leveling kit. What's the biggest tire I can fit?

 

Take that leveling kit off, go with a 2.5". Your ball joints, tie rod ends, and cv axles (if you have them) will thank you.

As for tire size, you left out the wheel info and whether 4x4 or 4x2.

 

I don't like tell people to remove something they've already purchased, and I just got done criticizing others for it, but yeah, I'd seriously consider removing that thing . . .

Also need that extra info Pizza talked about.

 

I have a 2.5" level in my truck... Did the trick for me. I put on BFG All terrains in a 305/65 r18. I'm pretty happy with the stance of the truck and was pleasantly surprised by the tires grip even on snow covered lakes, this is my fishing rig! These are physically the biggest ones I can fit with my setup, and its like a fraction of an inch from rubbing at full turn..

 

You can fit 35s. I researched a lot before I bought 315/70/17s for my truck. A lot of people will tell you that they will rub, but they won't... I also have a 3" level kit on mine. Again, a lot of people will tell you that 2.5" is as high as you should go, but it isn't.

 

It's a 4 x 4

 

We tell people that for a reason, because you really shouldn't go higher. Yeah, it'll fit, but it'll also tear the whole front end up a lot faster. 35s will rub on a majority of leveled trucks unless you do a bunch of trimming and the wheel specs are just right.

Not sure why don't believe these things, but alright.

Stock wheels or aftermarket? Specs if after market?

 

They are the stock 18 x 7.5 wheel

 

You can stuff big tires in there, but I'd stick to something around 34" and no wider than 295mm at the most. Those wheels will cause uneven wear on a 12.5" wide tire, as well as rub, and even 295 is really too wide for them in my opinion. Something around 285/70/18 (if they make them) would be my choice.

Plenty of people still stuff full 35s on those wheels, so you can go ahead and do that, but the above is the "good advice."

 

Ok great thanks for the insight. I'll post pics after I get everything finished

 

Sounds good! A 34" tire will still look huge on an 18 too. I'm sure you'll be happy with whatever you get