I've been abusing my '96 half-ton 4x4 by driving fast on really rough trails (unloaded). How much can this truck take? I'm especially concerned about the front suspension--it takes most of the impact when I hit a bump, but I've always heard that the leaf spring suspension (like on the rear) is more durable. Are there incidences of failure of the front suspension on these trucks? I'm particularly worried about the torsion bars. Or am I just worried about nothing? Will this truck absorb all the punishment I can give it?