A suggestion, when attacking such a curb in the future try turning the car in a diagonal direction, eg. come at the "trouble area at an angle". One of my old cars was a 91 camaro dam thing would scrape the ground just by looking at it. My best friend used to live on a private drive with a "trouble spot". I learned this diagonal trick quite early on. Try it out and lemme know if it works for your situation......this usually works for those areas where slowing down to a snail's speed doesnt work, try combining that and the angeld approach.