I am looking to purchase new tires for my 5th wheel travel trailer. Presently I have Carslie tires - ST205-75R15 load rated "C". I am not pleased with these tires. I have had two blow-outs with them in the last two outings and have little mileage on them. I check pressure before every trip. I was wondering if someone could recommend a better brand of trailer tires. I have been considering LT load rated "D" tires but I am not sure if I can get them in the same size I require. I am living in the Montreal area. Any comments and suggestions would be most appreciated.