Gear Problem.

Anyone tell me why my landing gear is bouncing wildly. I have the aircraft below the grid in gmax 18.0 feet and my contact points set at a corresponding hieght of -18.1. There is at least 3 feet of travel on the nose gear and 2 feet on the main gear (compression 100-150-200). They were working fine but I had to make an adjustment to the fuselage because I built it with the nose slightly lower for a sloping pitch. At the time I did'nt realize I could control that in the CFG and Airfile. So when I raised the nose back to 0.0 it made everything unstable. What am I missing? Do I need to relink /reanimate/move the gear. Thanks Greg.