The Ultima 4x4 gas shockers alone have made a big difference to my Terracan - stopped the hallmark diagonal and front to rear floaty behaviour but still maintaining a comfortable ride. As a bonus, the steering characteristics improved slightly as well, which was very welcome. Note: the top post on all the shockers is shorter than standard so a more squat set of rubbers is required to enable the lock nut enough thread. All in all, great value and very pleased with the purchase.