I drive a 99 si coupe!! I was driving to orlando last night and my transmission kept poping out of 5th gear on the interstate, so i decided to hold it in, probly not the best idea!!! It kept trying to force itself out of fith but i remained holing it in! About an hour later i stop to piss and while in in nuetral with the clutch not pushed in, there was a loud grinding noise, when i pushed in the clutch it stoped!! I got back on the interstate and maybe 25 minutes later my transmission made a loud clunking noise, metal rattling and shaking noise! I stop at a toll and i have no 1st,2nd,3rd,5th,or reverse just 4th gear! It still went in gear but when i let the clutch out in 1st,2nd,or 3rd the car would bog down and not move, it would also try to stall! But 4th gear it would let me start in??? WTF????? I got the car towed but now where do i start???? Thanks for all advise from anyone! I really need it and appriciate it!!!