When the drive shaft center bearing support breaks the drive line will pound up and down on the floor board under acceleration. You can hear it and feel it. When the transmission support mount breaks the sensation is quite different. The transmission will shift from side to side when cornering. Norlmally there is not souind with this, just feeling. In cars that have accelerator linkage, a bouncing feeling will also be felt in the throttle. On cars with an accelerator cable this will not be apparent. Paul In a message dated 12/14/2003 10:52:45 PM Eastern Standard Time, mikanlin62@xxxxxxxxxx writes: > > > Whenever you are checking out the driveline support, take a moment and see > just how soft and pliable the rear trans mount has become. They get soaked > with transmission fluid over the years and that turns the rubber into , > well..basically the polite term would be mucus. > > The upshot of that is that the rear of the trans is now able to move around > a bit under torque and can cause that driveline to whip around a bit, the > symptom will sound and feel very much like a carrier bearing going bad. If > you are going to be doing a carrier soon, it may be just the time to replace > the trans mount as well. Then the next time either of those should need > any further attention should be around the year 2050 ! > > Mike Sutton > 62 Crown Coupe > > >