I wouldn't want anything BUT load range E tires on my trucks. I install them on my suburban even though they aren't standard issue. They more stout build quality and often better wear abilities meant for HD work ensures you have a tire that is up to most anything that you can through at it.
My brother cheapened and go some P-rated tires and they wore, handled and rode way below our expectations.
My brother cheapened and go some P-rated tires and they wore, handled and rode way below our expectations.