i was getitng locked in first gear unless i moved the car a little (even when the car was off).. and shifting between 1st to 2nd was sluggish.. and the transmission was whining a lot in 1st, 2nd gear
so i took it apart
and found out 2nd gear broke a tooth
the 1-2 shifting sleeve is scored
and the output shaft bearing is owned (prolly from the broken tooth passing through the system)
what scares me was i wasn't even wheel hopping at the track

though all the things that broke were never replaced ever. car has 94,000 km on it roughly, 70k was all boosted. so maybe the wheel hopping back then fatigued the gears already