Question: what is the difference between a trailer tire and a light truck tire?
Answer: LT tires that have softer sidewalls than ST tires can increase and exacerbate trailer sway. ... Tim Fry, senior development engineer at Goodyear Tire & Rubber Company stated, “The major difference is reflected in the polyester cords used in ST tires. These cords are bigger than they would be for a comparable P or LT tire.