shutter during acceleration

[Jgackle]

New to the forum, first post. Looking for feedback and thanks in advance

2001 Grand Prix GT 3800, 160k, shutter or vibration during any type of acceleration, gets worse at max acceleration and/or during turning. Thinking may be engine or Tranny mount, but could it also be in the drivetrain itself (ie, cv shaft(s)?

[JoRoW99]

my guess would be an axle. check to see if the boots are at least good. mine also shuddered in reverse when i had bad engine/trans mounts. they probably need replaced anyway with 160k. mine were bad at 108k. You can see them if you pull the wheels off, may not even need to do that.