Unusual stability problem

Very strange – e-mail me the S file and I’ll see if I can spot anything odd in there.

I just finished a car that is completely unstable in MSTS. The car ‘jiggles’ all over the place even when stationary … mostly from side to side … but now and again up and down as well. The wheels, which were just replaced with wheels from another model, stay stable and in place.

When not ‘jiggling’ the car is always slightly rotated around the Y and X axes as shown on the accompanying screen shots.

The car appears to be perfectly aligned when viewed with a flipped second shape in Shapeview and is perfectly stable with animation selected.

The car was built, but never finished, about two years ago with an older version of 3DC and recently loaded into 7.1.1.2 which I am now using. I replaced the original wheels and axles with ones from a later model and these new wheels appear to be the only stable parts in the model.

Any ideas?

Here is the second misalignment screen shot.