Important Question

sorry i know im not suppost to post my problems with my car in this part of the forum but i really need help.
i have a 91 maro RS v6, 4speed auto.
ok it has this really weird vibration, when i take a right turn or im going stright. when i take a left turn it smooths out and gets good acceleration, but when im going right or stright it has bad acceleration, and it vibrates the whole car. also when it kicks into overdrive it vibrates really bad.
its like when im going 40 and its in OD about 14grand, and i accelerate slowly to 45, it vibrates like a mofo!
i already changed my fuel filter. it cant be where the fuel it pumped out of the take cuz it does it when i have a full tank.
some of the suggestions my auto-instructor told me was either.
the hyromonic balance getting ready to shatter.
my torque converter
something internal inside the engine.
please i need this fixed.
any help would be great!

if the vibration goes away on a left turn, then I doubt it's motor or tranny that's causing it, I think it's tie rods or ball joints.

let me add
it runs rough at idle also

if the vibration goes away on a left turn, then I doubt it's motor or tranny that's causing it, I think it's tie rods or ball joints.
Or front wheel bearings

ahh good call.

but at idle?

You might have more than one problem going on. Start with the stuff that the other 2 guys said, and see if any or all of your problems are fixed, then let us know.

alright guys, i figured out the problem, the spark plug wire to the cylinder behind the alternater....
the toughest spark plug to get to!
but the wire had a short in it and was grounding out on where the wire was touching the block
luckily i saved my old one's that were still good!!
i replaced it and its running great!!
oh the funny part is
when i saw it sparking against the block i lifted it up off the block.... it shocked the SHIT outta me.... omg it was crazy, but fun!!
thx guys for all ur help!! and geno, u were right! it was a misfire (he talked to me on AIM)