when i quick shift from 2nd to 3rd, sometimes i hear a grind and i can feel it. but one day i was trying to do grind it on purpose to show my friend and it wouldnt go. but when it does its like loud and i can feel it grind. usually when im not paying attention and shifting fast. also when im going into 5th from 4th on the freeway. at like 5k, it grinds. but when i hold the clutch down long enough for it to drop to 3500. it wont grind. whats wrong?
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