Before you all jump on me abut inflation and weight, etc. I always check my tires and make sure they are aired up to 95 lbs (as called for)...Well, this weekend, one of my Chinese tire bombs blew on ...
You grossly over inflated your tires. Do not inflate to the max of the tire as you are not pulling max weight trailer. If you pulled 26,000 lbs. then inflate to 120. A G tire with a 12,000 trailer only needs 80 to 85 lbs., not 120.
Now all the expert tire people, who cannot use a cell phone, will give you advice.