Sub Frame mounts...?

[Jason Beal]

What noises would a strut/subframe/trannie mount(s) make when going bad? I've checked my entire chassis, inspected the brakes, and had a mechanic look and drive (Of course the car didn't make the noise then!) my car, and I still can't find anything that has play or wear. I still hear a loud THUD (Sometimes a light thud, sometimes rather violent) under my car if I stop quickly. Then starting off the line a low growl (Lasting 2-3 seconds) from underneath as I come out of first gear. I'm thinking they are coming from the same source, although I could be wrong. Upon paying closer attention I notice this noise when stoping in a straight ahead position, either backward or forward. Any ideas are greatly appreciated. Thanks! 190e 2.6 1990