Trans i went though and put new syncros in and bearings. I kinda figured it wasnt the trans becuase when the noise happens and i grab the shifter down low it feels no different then other times as far as vibration. Also beings that 6 speed ls1 trans am in the youtube link above i posted is making the same exact noise, i figure both setups have a To bearing and pilot bearing in common... Ill have an answer this weekend, I hope!