ok so now i have decided it is a major problem i have a 2002 zx3 and i changed the dif to a quaife. the lsd is acting awesome but i think my synchros are screwed up. it shifts ok when i am just crusing but if i nail it and try to shift fast at high rpms it dont want to go in. in 2nd and grind like shit in third. and i know i have the clutch al the way down. how do i fix this. i already have the royal purple synchromesh but i cant race at all because of this. please help.