i am getting a new set of 38.5 14.5 16 for my truck and the thornbirds fall in the price range i want (cheap)$239 ea. and i want somthing that lasts my current tires wear real fast, i have had these tires before on my jeep but only for like 100 miles

here is a pic of the 31' that were on my jeep

 

I had a set of 35s on my Toyota, these tires ride pretty rough and sometimes the lugs on the side will break off and look like crap. They do ok in the mud, but not great.

 

Those are a pretty sweet tire! I wonder how they will wear...

 

Thornbirds have a very poor reputation. Most people consider them one of the worst tires ever made. I've never owned a set, but I've talked to a lot of people that have. The general opinion is that they perform poorly off road and even worse on the highway. Most people complain that they are extremely load, wear in strange patterns (usually cupping out) which causes them to get louder and have almost no traction on wet highways. They also tend to wear very fast. I think this is why most people refer to them as Turdbirds. The only upside I've heard is that they look cool. If I built a showtruck, I'd consider them, but not for a daily driver.

 

Is the same saide about the SS IROKS???

 

I second what wandell said. I have seen people try to give sets away and couldnt

 

thanks for the info

 

No, the Iroks are better. They're not for the road so their road manners are not well, but these can actually perform offroad. They are made specifically for rock crawling and are the competition for the BFG Krawlers.

 

Thanks for the info!

 

someone told me that the thornbirds were bias ply and not radial and thats why they wear so badly. anyone know different?

 

The thornbirds are a bias ply tire. That is part of the problem.

 

I'm running the 35 12.50 on my 2000 F150 and they ride like crap. I was wondering if I should run lower then 40 psi in each tire on the highway?

 

Please stay away from it!
Wear down VERY FAST!

They are very lousy in rain, snow/wetsnow.

WHy not get SSR? yeah, Irok is nice but too soft.

I like S. Swamper SX, its TOUGH SOB for off roading!

YOMAN!

 

They will ride a little better (not much) if you lower the air pressure to around 32 to 35psi.

 

I've only heard bad things about them as far as using them on the road. But you gotta admit, they look WILD! Definatly goiod for a show truck. I'd give them a try on something that was only for play.