They are M/T 31*13 on a 10" rim. It has been a couple of years since I ran these tires because I switched to the 31.25*12.2 M/T Radial. It seems like these tires may have changed some. I was doing pretty aggresive burnouts all night to try and get them to come in, but they never did. I'm taking the car out tonight and I'll try air pressure the other direction. Just seems like a lot of pressure to run.



If they're old they could be dried out(no resin left)