So I'm driving home from work... the slow driver in front of me turns off, so I'm in third and i punch it til I hit about 3800... I push the clutch all tha way in and shift to fourth, grinds..... clutch still in, grinds again... so I shift to 5th... then i shift from 5th to 4th, no problem... it was just weird... 4th has never ground before, and the clutch was fully engaged.....?