ok heres the deal i recently replaced the clutch in my 306 with a stock clutch kit from orielys for the time being. i asked for a clutch for a 1984 mustang gt and that is what they gave me. after i installed it i later found it, that the engine is from a 1980 vehicle (i think it was a truck if i remember correctly). Is there a certain clutch i should get considering 80's had the 28oz balanced flywheels instead of 50oz (i think)? i didnt even get to drive it but about 50 miles (had to move) with the stock clutch that i have now due to vibration. and im thinking maybe i have the wrong size (balanced) pressure plate, i dont know i am so lost. but i have cash in hand ready to buy a clutch kit and a new flywheel. any recomended clutches for this engine would be greatly appreciated, because i am so lost this is my last resort to the vibration, before i take it to a shop. btw i am running a t-5 tranny.