ITRCA

ok heres the skoop i have a 93 integra LS but it has a clutch n short shifter, but the problem is that wen i reach about 3500 or higher RPM from 2nd to 3rd it grinds n some times in first it gets stuck... How can i fix the problem?? change the shifter and check out my tranny?? help pls want to fix t...