I will never for the life of me understand why US armored vehicles have such low ground clearance. Its a feature that should NOT be desired....and it doesn't have to be that way.
Just like with wheeled vehicles, the lower the track the more shit you end up dragging with your vehicle making it less effective cross country.
I'll never be a believer in a 8in lift on my truck but give me 4 over stock and I'm happy...especially during hurricane season. The same should apply to the US Army's armor dept.