275/60-15 tire suggestions

I guess they aren't as expensive as I thought they were, about 40 bucks a tire more then they coopers

I just feel like these didn't last me very long

any idea what the difference is between the NIT-180300 and the NIT 180-490?
honestly I didn't know there was two different kinds I would be interested as well to know the difference...
I remember when I did order them from Summit they were $10 each extra for oversized package. But someone else was selling them for the same price with free shipping so I just made them price match. And I got them for a hundred and sixty each to the door...