Car vibrates while in Drive

1995 Bon 3.8, recently had the wires and plugs replaced. While lever in drive and at a stop, the mirrors vibrates and you can feel the whole car shakes. All stops when lever moved to Neutral or when accelerating. Mounts seem to be OK.

Any idea what can be causing above vibration through the whole car while in drive and at a stop..

PLS advise
Thanks

Could be normal but I would check the mounts again and make sure they are in good shape. This sounds like it could be related to the transmission mount. The other issue could be a cracked flywheel but that is much harder to check. You may have to go to a tranny shop to get that checked.

Are you saying that this shaking was not happening before you changed the plugs and wires?

It was shaking before plugs and wire replacement. I thought it could have been the wires and plugs. I plan to check the mounts again and especialy the transmission mounts as I did not earlier. Could it be timing??