They were they were Iron Man Springs I'm not sure if there's a weight difference between the 60 and the 62 whether there was a mistake in the springs but it sucks driving that thing for about 6 months maybe a year. They're also very expensive and I think in this day in age financially doesn't make sense to have a truck with leaf springs if they're going to fail in a few years.What kind of springs? Shouldn’t be that stiff!