[TWX]

Well, I can tell you that my '97 Stratus with the 2.4L four cylinder did have all four mounts go before reaching 100,000 miles, so it's not inconceivable that you have the same problem.

 

[TWX]

Well, a good baseline is to have the car in park, have someone else rev the throttle up and down aggressively, and to watch from the front to see how much the motor moves.

These cars had some kind of odd hydraulic mounts that were fluid-filled. The two side mounts on top of the wheel wells are hard to see, but the lower spool-type mounts are easy to get to. They'll probably be obvious if they're bad, and if they are, it's possible that the stress on the uppers has popped those too.

 

[TWX]

I think they fixed the need for an alignment process with the design of the side mounts on the J-cars, they seem to only go in one way.