I forgot to say I have an A/F gauge that is reading it's normal bouncy-bouncy stoich. So I don't think it's the plugs. But since it's easy to check I'll do that next.
The fact that it(sometimes) goes away when turning left is what made me think mounts. Like I said I haven't checked the tranny mount yet and I'm hoping it's that simple.
Yes I have done searches for the flex plate/flywheel and the description of that particular problem sounds a little different.
But is the flex plate the part that I can see through the bell housing when under the car? With the teeth that I assume are for the starter?
If that is the problem could I change it with the tranny/engine still in the car?
Another possibility I considered is the crankshaft.
Would a bad bearing cause such symptoms?
I assume a more damaged or cracked crank would make the car undriveable?
Thanks for the help by the way! I assume diagnosing a problem with a vague description far away can be a little tough.