Tranny grinds 1-2 shift, and 2-1 shift, all others are good. clutch is somewhat new (9 months old), when it grinds between shifts, the clutch is down to the floor. Sometimes it pops out of 2nd (on deceleration), and while in neutral with foot off clutch, eventually u hear some noises (rolling, rumbling, however you wanna describe it). Got a steeda tri-ax and changed the tranny fluid, didnt help a single thing. Are these synchros, or do i just need a total rebuild? If so, any ideas on costs?