When i am driving normally i have no problems, but when i start going into higher rpms and quick shifting it grinds into gear. It happends even tho i have the clutch fully pressed to the floor.It only happends when shifting into 2nd and 3rd.Im thinking that it my shifter bushing because it is really wobbly when it is in gear.

 

i know this wont fix whatever problem you are having, but i have the same issue. whenever i go to quick shift, i doudble clutch it. doesnt grind one little bit as long as your timing is right.

 

Synchronizers are most likely weak, just give it more time or double-clutch until you can rebuild or replace the transmission

 

But i have already replaced the transmission once lol...i want to switch back to the original one because its a GTUs so it has AMAZING gears.