update, i've just return from 100 km plus journey, during the last 20 km, the vibration became more noticeable even at speed below 100kmh. During my trip i speed up my car up to 140kmh ignoring the vibration. i think maybe my universal joint had worn out... but must check n confirm.
sometimes when i suddenly release the clutch paddle, a 'ktang' sound heard from underneath the floor board. is it the sign of worn universal joint. maybe i should replace the universal joint first than try if there are any sign of vibe before rebalance the tail shaft. what do you think?
hi guys, i had install 5 speed into my sedan 1200. my tailshaft had been cut n joint to accomodate longer gearbox. i notice when running past 100kmh i could feel vibration from my floor. is it from my tail shaft modification? is it possible the tail shaft to be balance? thanks