I have a 1998 Durango 4x4, it has 31 inch tires on it. Does anyone know how many inches (factory) it is supposed to be from the ground to bottom of the front wheelwell opening. The center that is. I just need a good reference point to measure from. I believe front suspension is actually lower than factory height. The bumpstops are just about on the lower control arm. I will need to give the ol' torsion bars a few turns, just need a little info on the height. Thanks.